9. nutritional and nutraceutical...
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Nutritional and Nutraceutical evaluation
274
9 NUTRITIONAL AND NUTRACEUTICAL
EVALUATION
Wild mushrooms are becoming more important in our diet due to their
nutritional value in view of the high protein and low fatenergy contents (Dieacutez and
Alvarez 2001 Agahar-Murugkar and Subbulakshmi 2005 Barros et al 2007 c) In
the present study the proximate composition of wild edible species of termitophilous
and lepiotoid mushrooms for the presence of nutrients and nutraceutics have been
undertaken The evaluation of nutrient composition included the determination of
proteins fats ash fibers energy value carbohydrates heavy metals and mineral
elements The evaluation of nutraceutical composition included the determination of
phenolic compounds flavonoids carotenoids alkaloids and vitamins Besides
experiments were also performed to screen and evaluate the lignocellulolytic enzyme
production by the mushroom mycelium These aspects have been worked out
following standard techniques listed under Material and Methods The results of the
chemical composition and estimated energetic value (expressed on dry weight basis)
of the wild edible mushrooms have been given in tables 4 to 7
91 Nutritional studies
Proteins The wild mushroom species are reported to contain higher contents of
protein and amino acids (Kurtzman 1975) usually around 20 - 30 by dry weight
which is quite useful for vegetarians or anyone looking to increase the protein content
in their diet Mushrooms due to high quantity and quality of proteins have been
recognized by FAO as the food contributing to the protein nutrition of the countries
depending largely on cereals During present investigations the total proteins were
estimated by AOAC (1990) method through Kjeldhal apparatus Amongst the worked
out species maximum protein content has been found in T medius (462) followed
Nutritional and Nutraceutical evaluation
275
by T badius (44) while T striatus (1295) contained lowest amount of protein per
100 gram of dry sample The nutrient profile in general revealed that termitophilous
mushrooms are rich source of protein (Table 4) and the values obtained are
comparable to vegetables like Soybean (365) in this regard In comparison in
lepiotoid mushrooms the net protein percentage evaluated ranged between 1645 -
1995 which is slightly higher than T striatus (1295) but much less in
comparison to rest of the termitophilous mushrooms evaluated during the present
investigations (Table 4 amp 6)
Fibers Mushrooms are a valuable source of dietary fiber and important for the
digestive system Analysis of mushrooms confirms the presence of relatively large
amounts of fiber varying from 3 - 32 (Chang and Hayes 1978) Presently crude
fibres were determined by acid and alkali digestion methods Crude fibers in dried
samples were found to be maximum in T mammiformis (8) followed by T medius
(75) and minimum percentage of these were documented in T badius (25) and
Macrolepiota rhacodes (25) (Table 4 amp 6)
Crude Fat Like proteins and carbohydrates mushrooms possess a wide range of fat
content varying from 12 to 206 (Adriano and Cruz 1933) Presently crude fat was
determined by extraction through Soxhlet apparatus using petroleum ether It was
found to be maximum in M procera (34) followed by T mammiformis (33)
while other mushrooms contain considerably low percentage of crude fat and in T
heimii the amount of crude fat is lowest (165) per 100 g of dry sample
(Table 4 amp 6)
Total Ash For ash content 5 - 10 g of sample was ignited in silica dish up to 5250C
for constant weight Presently Ash content was maximum in T microcarpus (156
Nutritional and Nutraceutical evaluation
276
in dry sample) followed by T striatus (1213) and lowest amount of ash was
recorded in M procera (193)
Table 4 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Termitomyces species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Protein
()
Moisture
()
Crude
fat ()
Fiber
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 T microcarpus 3745045 59024 25001 5011 156006 3355011 3065004
2 T radicatus 4000020 603002 18012 48004 63008 4107003 3404806
3 T mammiformis 2345004 77006 33017 8026 99009 4765002 3141001
4 T medius 4620002 6017 20005 75004 5020 333037 3360005
5 T badius 4400010 57022 22010 25001 66003 39017 3518009
6 T striatus 1295005 73018 325006 41015 1213033 6027020 3221302
7 T heimii 4095084 76023 165019 5011 86005 362072 3234502
CD (ple 005) 026 014 008 015 010 026 040
Fig 106 Proximate analysis of seven Termitomyces species
Carbohydrates Carbohydrates constitute the greatest fraction of the mushroom dry
matter Carbohydrate percentage was found to be maximum in M rhacodes (6819)
0
10
20
30
40
50
60
70
Per
cen
tage
()
Proteins () Moisture () Crude fat () Fibers () Ash () Carbohydrates ()
Species
Nutritional and Nutraceutical evaluation
277
followed by M procera (6082) while T medius (333) contained lowest amount
of carbohydrates (Table 4 amp 6)
Moisture Moisture content does become a limiting factor in using mushrooms as a
significant contributor to the diet although moisture content in itself may not be of
any nutritional significance however it does considerably influence the nutritional
value Fresh mushrooms like most vegetables contain high amount of moisture
content (90 on an average) which may be altered by environmental and storage
conditions (Purkayastha and Chandra 1985) The average moisture content recorded
in dried samples was highest in M dolichaula (88) followed by M procera (85)
and minimum in T badius (57) on dry weight basis
Table 5- Proximate Mineral elements (mg100 g) of wild Termitomyces species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 T microcarpus 86100 6020 6030 3053 24142 012002 008002
2 T radicatus 482 150 272 198 9032 10015 109100 009001 004001
3 T badius 144 090 205105 7148 3032 24142 008002 006002
4 T medius 454 100 330100 7184 13079 204050 007001 006001
5 T heimii 388 074 287050 6009 5027 28135 011002 007001
6 T striatus 82082 191100 11108 2028 15022 005002 00700
7 T mammiformis 673 100 277050 4046 2053 30100 007001 006001
CD (ple005) 072 082 071 030 075 001 0008
Nutritional and Nutraceutical evaluation
278
Fig 107 Mineral elements of seven Termitomyces species
Table 6 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Macrolepiota species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Proteins
()
Moisture
()
Crude fat
()
Fibers
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 M procera 1995106 85062 34008 51022 193006 6082011 3537006
2 M rhacodes 1645054 78062 29011 25001 216014 6819017 3647060
3 M dolichaula 1995135 88147 32020 485018 73015 562010 3334011
CD (ple005) 030 054 012 011 006 082 026
Table 7 Proximate Mineral elements (mg100 g) of wild Macrolepiota species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 M procera 276087 254200 9032 5030 14061 008003 006003
2 M rhacodes 248174 217050 8071 3053 28140 006003 009002
3 M dolichaula 241173 143100 5092 1023 5072 010005 008001
4 CD (ple005) 123 082 054 018 065 008 006
-100
0
100
200
300
400
500
600
700
800
Ca
Mg
Fe
Cu
Mn
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
279
Fig 108 Proximate analysis of three Macrolepiota species
Fig 109 Mineral elements of three Macrolepiota species
92 Determination of mineral elements and heavy metals
During the present investigation mineral estimation and heavy metal
detection was done by the method of Jackson (1967) with the help of Atomic
Absorption Spectrophotometer and results are documented in tables-5 7 amp 8 Out of
0
10
20
30
40
50
60
70
80
90
Macrolepiota procera Macrolepiota rhacodes Macrolepiota dolichaula Per
cen
tge
()
on
dry
wei
gh
t b
asi
s
Moisture () Proteins () Crude fat ()
Fibers () Ash () Carbohydrates ()
Species
-50
0
50
100
150
200
250
300
350
M procera M rhacodes M dolichaula
Fe
Ca
Cu
Mn
Mg
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
275
by T badius (44) while T striatus (1295) contained lowest amount of protein per
100 gram of dry sample The nutrient profile in general revealed that termitophilous
mushrooms are rich source of protein (Table 4) and the values obtained are
comparable to vegetables like Soybean (365) in this regard In comparison in
lepiotoid mushrooms the net protein percentage evaluated ranged between 1645 -
1995 which is slightly higher than T striatus (1295) but much less in
comparison to rest of the termitophilous mushrooms evaluated during the present
investigations (Table 4 amp 6)
Fibers Mushrooms are a valuable source of dietary fiber and important for the
digestive system Analysis of mushrooms confirms the presence of relatively large
amounts of fiber varying from 3 - 32 (Chang and Hayes 1978) Presently crude
fibres were determined by acid and alkali digestion methods Crude fibers in dried
samples were found to be maximum in T mammiformis (8) followed by T medius
(75) and minimum percentage of these were documented in T badius (25) and
Macrolepiota rhacodes (25) (Table 4 amp 6)
Crude Fat Like proteins and carbohydrates mushrooms possess a wide range of fat
content varying from 12 to 206 (Adriano and Cruz 1933) Presently crude fat was
determined by extraction through Soxhlet apparatus using petroleum ether It was
found to be maximum in M procera (34) followed by T mammiformis (33)
while other mushrooms contain considerably low percentage of crude fat and in T
heimii the amount of crude fat is lowest (165) per 100 g of dry sample
(Table 4 amp 6)
Total Ash For ash content 5 - 10 g of sample was ignited in silica dish up to 5250C
for constant weight Presently Ash content was maximum in T microcarpus (156
Nutritional and Nutraceutical evaluation
276
in dry sample) followed by T striatus (1213) and lowest amount of ash was
recorded in M procera (193)
Table 4 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Termitomyces species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Protein
()
Moisture
()
Crude
fat ()
Fiber
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 T microcarpus 3745045 59024 25001 5011 156006 3355011 3065004
2 T radicatus 4000020 603002 18012 48004 63008 4107003 3404806
3 T mammiformis 2345004 77006 33017 8026 99009 4765002 3141001
4 T medius 4620002 6017 20005 75004 5020 333037 3360005
5 T badius 4400010 57022 22010 25001 66003 39017 3518009
6 T striatus 1295005 73018 325006 41015 1213033 6027020 3221302
7 T heimii 4095084 76023 165019 5011 86005 362072 3234502
CD (ple 005) 026 014 008 015 010 026 040
Fig 106 Proximate analysis of seven Termitomyces species
Carbohydrates Carbohydrates constitute the greatest fraction of the mushroom dry
matter Carbohydrate percentage was found to be maximum in M rhacodes (6819)
0
10
20
30
40
50
60
70
Per
cen
tage
()
Proteins () Moisture () Crude fat () Fibers () Ash () Carbohydrates ()
Species
Nutritional and Nutraceutical evaluation
277
followed by M procera (6082) while T medius (333) contained lowest amount
of carbohydrates (Table 4 amp 6)
Moisture Moisture content does become a limiting factor in using mushrooms as a
significant contributor to the diet although moisture content in itself may not be of
any nutritional significance however it does considerably influence the nutritional
value Fresh mushrooms like most vegetables contain high amount of moisture
content (90 on an average) which may be altered by environmental and storage
conditions (Purkayastha and Chandra 1985) The average moisture content recorded
in dried samples was highest in M dolichaula (88) followed by M procera (85)
and minimum in T badius (57) on dry weight basis
Table 5- Proximate Mineral elements (mg100 g) of wild Termitomyces species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 T microcarpus 86100 6020 6030 3053 24142 012002 008002
2 T radicatus 482 150 272 198 9032 10015 109100 009001 004001
3 T badius 144 090 205105 7148 3032 24142 008002 006002
4 T medius 454 100 330100 7184 13079 204050 007001 006001
5 T heimii 388 074 287050 6009 5027 28135 011002 007001
6 T striatus 82082 191100 11108 2028 15022 005002 00700
7 T mammiformis 673 100 277050 4046 2053 30100 007001 006001
CD (ple005) 072 082 071 030 075 001 0008
Nutritional and Nutraceutical evaluation
278
Fig 107 Mineral elements of seven Termitomyces species
Table 6 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Macrolepiota species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Proteins
()
Moisture
()
Crude fat
()
Fibers
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 M procera 1995106 85062 34008 51022 193006 6082011 3537006
2 M rhacodes 1645054 78062 29011 25001 216014 6819017 3647060
3 M dolichaula 1995135 88147 32020 485018 73015 562010 3334011
CD (ple005) 030 054 012 011 006 082 026
Table 7 Proximate Mineral elements (mg100 g) of wild Macrolepiota species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 M procera 276087 254200 9032 5030 14061 008003 006003
2 M rhacodes 248174 217050 8071 3053 28140 006003 009002
3 M dolichaula 241173 143100 5092 1023 5072 010005 008001
4 CD (ple005) 123 082 054 018 065 008 006
-100
0
100
200
300
400
500
600
700
800
Ca
Mg
Fe
Cu
Mn
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
279
Fig 108 Proximate analysis of three Macrolepiota species
Fig 109 Mineral elements of three Macrolepiota species
92 Determination of mineral elements and heavy metals
During the present investigation mineral estimation and heavy metal
detection was done by the method of Jackson (1967) with the help of Atomic
Absorption Spectrophotometer and results are documented in tables-5 7 amp 8 Out of
0
10
20
30
40
50
60
70
80
90
Macrolepiota procera Macrolepiota rhacodes Macrolepiota dolichaula Per
cen
tge
()
on
dry
wei
gh
t b
asi
s
Moisture () Proteins () Crude fat ()
Fibers () Ash () Carbohydrates ()
Species
-50
0
50
100
150
200
250
300
350
M procera M rhacodes M dolichaula
Fe
Ca
Cu
Mn
Mg
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
276
in dry sample) followed by T striatus (1213) and lowest amount of ash was
recorded in M procera (193)
Table 4 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Termitomyces species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Protein
()
Moisture
()
Crude
fat ()
Fiber
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 T microcarpus 3745045 59024 25001 5011 156006 3355011 3065004
2 T radicatus 4000020 603002 18012 48004 63008 4107003 3404806
3 T mammiformis 2345004 77006 33017 8026 99009 4765002 3141001
4 T medius 4620002 6017 20005 75004 5020 333037 3360005
5 T badius 4400010 57022 22010 25001 66003 39017 3518009
6 T striatus 1295005 73018 325006 41015 1213033 6027020 3221302
7 T heimii 4095084 76023 165019 5011 86005 362072 3234502
CD (ple 005) 026 014 008 015 010 026 040
Fig 106 Proximate analysis of seven Termitomyces species
Carbohydrates Carbohydrates constitute the greatest fraction of the mushroom dry
matter Carbohydrate percentage was found to be maximum in M rhacodes (6819)
0
10
20
30
40
50
60
70
Per
cen
tage
()
Proteins () Moisture () Crude fat () Fibers () Ash () Carbohydrates ()
Species
Nutritional and Nutraceutical evaluation
277
followed by M procera (6082) while T medius (333) contained lowest amount
of carbohydrates (Table 4 amp 6)
Moisture Moisture content does become a limiting factor in using mushrooms as a
significant contributor to the diet although moisture content in itself may not be of
any nutritional significance however it does considerably influence the nutritional
value Fresh mushrooms like most vegetables contain high amount of moisture
content (90 on an average) which may be altered by environmental and storage
conditions (Purkayastha and Chandra 1985) The average moisture content recorded
in dried samples was highest in M dolichaula (88) followed by M procera (85)
and minimum in T badius (57) on dry weight basis
Table 5- Proximate Mineral elements (mg100 g) of wild Termitomyces species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 T microcarpus 86100 6020 6030 3053 24142 012002 008002
2 T radicatus 482 150 272 198 9032 10015 109100 009001 004001
3 T badius 144 090 205105 7148 3032 24142 008002 006002
4 T medius 454 100 330100 7184 13079 204050 007001 006001
5 T heimii 388 074 287050 6009 5027 28135 011002 007001
6 T striatus 82082 191100 11108 2028 15022 005002 00700
7 T mammiformis 673 100 277050 4046 2053 30100 007001 006001
CD (ple005) 072 082 071 030 075 001 0008
Nutritional and Nutraceutical evaluation
278
Fig 107 Mineral elements of seven Termitomyces species
Table 6 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Macrolepiota species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Proteins
()
Moisture
()
Crude fat
()
Fibers
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 M procera 1995106 85062 34008 51022 193006 6082011 3537006
2 M rhacodes 1645054 78062 29011 25001 216014 6819017 3647060
3 M dolichaula 1995135 88147 32020 485018 73015 562010 3334011
CD (ple005) 030 054 012 011 006 082 026
Table 7 Proximate Mineral elements (mg100 g) of wild Macrolepiota species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 M procera 276087 254200 9032 5030 14061 008003 006003
2 M rhacodes 248174 217050 8071 3053 28140 006003 009002
3 M dolichaula 241173 143100 5092 1023 5072 010005 008001
4 CD (ple005) 123 082 054 018 065 008 006
-100
0
100
200
300
400
500
600
700
800
Ca
Mg
Fe
Cu
Mn
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
279
Fig 108 Proximate analysis of three Macrolepiota species
Fig 109 Mineral elements of three Macrolepiota species
92 Determination of mineral elements and heavy metals
During the present investigation mineral estimation and heavy metal
detection was done by the method of Jackson (1967) with the help of Atomic
Absorption Spectrophotometer and results are documented in tables-5 7 amp 8 Out of
0
10
20
30
40
50
60
70
80
90
Macrolepiota procera Macrolepiota rhacodes Macrolepiota dolichaula Per
cen
tge
()
on
dry
wei
gh
t b
asi
s
Moisture () Proteins () Crude fat ()
Fibers () Ash () Carbohydrates ()
Species
-50
0
50
100
150
200
250
300
350
M procera M rhacodes M dolichaula
Fe
Ca
Cu
Mn
Mg
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
277
followed by M procera (6082) while T medius (333) contained lowest amount
of carbohydrates (Table 4 amp 6)
Moisture Moisture content does become a limiting factor in using mushrooms as a
significant contributor to the diet although moisture content in itself may not be of
any nutritional significance however it does considerably influence the nutritional
value Fresh mushrooms like most vegetables contain high amount of moisture
content (90 on an average) which may be altered by environmental and storage
conditions (Purkayastha and Chandra 1985) The average moisture content recorded
in dried samples was highest in M dolichaula (88) followed by M procera (85)
and minimum in T badius (57) on dry weight basis
Table 5- Proximate Mineral elements (mg100 g) of wild Termitomyces species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 T microcarpus 86100 6020 6030 3053 24142 012002 008002
2 T radicatus 482 150 272 198 9032 10015 109100 009001 004001
3 T badius 144 090 205105 7148 3032 24142 008002 006002
4 T medius 454 100 330100 7184 13079 204050 007001 006001
5 T heimii 388 074 287050 6009 5027 28135 011002 007001
6 T striatus 82082 191100 11108 2028 15022 005002 00700
7 T mammiformis 673 100 277050 4046 2053 30100 007001 006001
CD (ple005) 072 082 071 030 075 001 0008
Nutritional and Nutraceutical evaluation
278
Fig 107 Mineral elements of seven Termitomyces species
Table 6 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Macrolepiota species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Proteins
()
Moisture
()
Crude fat
()
Fibers
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 M procera 1995106 85062 34008 51022 193006 6082011 3537006
2 M rhacodes 1645054 78062 29011 25001 216014 6819017 3647060
3 M dolichaula 1995135 88147 32020 485018 73015 562010 3334011
CD (ple005) 030 054 012 011 006 082 026
Table 7 Proximate Mineral elements (mg100 g) of wild Macrolepiota species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 M procera 276087 254200 9032 5030 14061 008003 006003
2 M rhacodes 248174 217050 8071 3053 28140 006003 009002
3 M dolichaula 241173 143100 5092 1023 5072 010005 008001
4 CD (ple005) 123 082 054 018 065 008 006
-100
0
100
200
300
400
500
600
700
800
Ca
Mg
Fe
Cu
Mn
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
279
Fig 108 Proximate analysis of three Macrolepiota species
Fig 109 Mineral elements of three Macrolepiota species
92 Determination of mineral elements and heavy metals
During the present investigation mineral estimation and heavy metal
detection was done by the method of Jackson (1967) with the help of Atomic
Absorption Spectrophotometer and results are documented in tables-5 7 amp 8 Out of
0
10
20
30
40
50
60
70
80
90
Macrolepiota procera Macrolepiota rhacodes Macrolepiota dolichaula Per
cen
tge
()
on
dry
wei
gh
t b
asi
s
Moisture () Proteins () Crude fat ()
Fibers () Ash () Carbohydrates ()
Species
-50
0
50
100
150
200
250
300
350
M procera M rhacodes M dolichaula
Fe
Ca
Cu
Mn
Mg
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
278
Fig 107 Mineral elements of seven Termitomyces species
Table 6 Proximate chemical composition (g100 g) and energetic value (kJ100 g) of
wild Macrolepiota species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Proteins
()
Moisture
()
Crude fat
()
Fibers
()
Ash
()
Carbohydrates
()
Energy
(kJ100 g)
1 M procera 1995106 85062 34008 51022 193006 6082011 3537006
2 M rhacodes 1645054 78062 29011 25001 216014 6819017 3647060
3 M dolichaula 1995135 88147 32020 485018 73015 562010 3334011
CD (ple005) 030 054 012 011 006 082 026
Table 7 Proximate Mineral elements (mg100 g) of wild Macrolepiota species (On
dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Mineral elements (mg100 g) of dry samples
Fe Mg Cu Mn Ca Se Zn
1 M procera 276087 254200 9032 5030 14061 008003 006003
2 M rhacodes 248174 217050 8071 3053 28140 006003 009002
3 M dolichaula 241173 143100 5092 1023 5072 010005 008001
4 CD (ple005) 123 082 054 018 065 008 006
-100
0
100
200
300
400
500
600
700
800
Ca
Mg
Fe
Cu
Mn
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
279
Fig 108 Proximate analysis of three Macrolepiota species
Fig 109 Mineral elements of three Macrolepiota species
92 Determination of mineral elements and heavy metals
During the present investigation mineral estimation and heavy metal
detection was done by the method of Jackson (1967) with the help of Atomic
Absorption Spectrophotometer and results are documented in tables-5 7 amp 8 Out of
0
10
20
30
40
50
60
70
80
90
Macrolepiota procera Macrolepiota rhacodes Macrolepiota dolichaula Per
cen
tge
()
on
dry
wei
gh
t b
asi
s
Moisture () Proteins () Crude fat ()
Fibers () Ash () Carbohydrates ()
Species
-50
0
50
100
150
200
250
300
350
M procera M rhacodes M dolichaula
Fe
Ca
Cu
Mn
Mg
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
279
Fig 108 Proximate analysis of three Macrolepiota species
Fig 109 Mineral elements of three Macrolepiota species
92 Determination of mineral elements and heavy metals
During the present investigation mineral estimation and heavy metal
detection was done by the method of Jackson (1967) with the help of Atomic
Absorption Spectrophotometer and results are documented in tables-5 7 amp 8 Out of
0
10
20
30
40
50
60
70
80
90
Macrolepiota procera Macrolepiota rhacodes Macrolepiota dolichaula Per
cen
tge
()
on
dry
wei
gh
t b
asi
s
Moisture () Proteins () Crude fat ()
Fibers () Ash () Carbohydrates ()
Species
-50
0
50
100
150
200
250
300
350
M procera M rhacodes M dolichaula
Fe
Ca
Cu
Mn
Mg
Se
Zn
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
280
10 wild samples examined for estimation maximum amount of Fe (673 mg) was
recorded in T mammiformis followed by T radicatus (482 mg) while T striatus (82
mg) contained lowest amount of Fe Other seven species also possessed significant
levels of the mineral element Mg was maximum in T medius (330 mg) followed by
T heimii (287 mg) where as minimum quantity of Mg (6 mg) was recorded in T
microcarpus Maximum amount of Ca (204 mg) was recorded in T medius followed
by T radicatus (109 mg) whereas minimum quantity was documented in M
dolichaula (5 mg) Cu was maximum in T striatus (11 mg) followed by T radicatus
(9 mg100 gm dry wt) and T badius (7 mg) where as minimum quantity of this
element was detected in T mammiformis (4 mg) Mn was maximum in T medius (13
mg) followed by T radicatus (10 mg) Minimum amount of Mn (1 mg) was recorded
in M dolichaula Zn was maximum (009 mg) in M rhacodes followed by T
microcarpus (008 mg) whereas minimum quantity (004 mg) of Zn was recorded in
T radicatus Maximum amount of Se (012 mg) was recorded in T microcarpus
followed by 011 mg in T heimii whereas minimum amount (005 mg) was recorded
in T striatus
The determination of heavy metal concentration in the fruiting bodies of
mushrooms is essential in dietary intake studies Some of the heavy metals such as
As Cd Ni Cr Pb and Hg are toxic Traces of some heavy metals viz As Pb Ag
Hg Cd and Cr were found to be present in some of the presently investigated
samples Out of 10 wild samples examined highest accumulation of Hg was found in
T medius (010 mg) followed by T striatus (0099 mg) Other seven species also
possesses significant levels of this element with T radicatus having minimum
quantity (0016 mg) Maximum amount of As was observed in T striatus (00185 mg)
followed by M rhacodes (00074 mg) and least in T mammiformis (00037 mg) No
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
281
As was documented in T microcarpus T heimii M procera and M dolichaula Cd
was found to be maximum in T microcarpus (00048 mg) and least amount of this
metal was recorded in M rhacodes (00014 mg) Cr Ag and Pb were found to be
absent in all these samples Maximum permissible concentrations and approximately
permissible levels of harmful concentration of heavy metals in food stuff have been
depicted in table 8 Results showed that the amount of heavy metals in lepiotoid and
termitophilous mushrooms evaluated is well within the range of permissible limits for
human consumption (FAOWHO 1976)
Table 8 Heavy elements (mg100 g) of Termitomyces and Macrolepiota species (On
dry weight basis) (ND = Not detected)
Sr
No Species
Heavy metals (mg100 g) of dry samples
As Cr Hg Pb Cd Ag
1 T microcarpus ND ND 0094 ND 000488 ND
2 T radicatus ND ND 0016 ND 00022 ND
3 T badius 000002 ND 0096 ND 00045 ND
4 T medius 000010 ND 010 ND 00039 ND
5 T heimii ND ND 0018 ND 00040 ND
6 T striatus 00185 ND 0099 ND 00017 ND
7 T mammiformis 00037 ND 0043 ND 00027 ND
8 M procera ND ND 0087 ND 00019 ND
9 M dolichaula ND ND 0062 ND 00019 ND
10 M rhacodes 00074 ND 0069 ND 00014 ND
11
Permissible limit in
individual food
article
1 mg kg 53 mgkg 1 mgkg 25 mgkg 15 mgkg
25 mgkg
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
282
Fig 110 Histogram showing heavy elements of Termitomyces and Macrolepiota
species
93 Neutraceutical studies
Evaluation for the presence of phenolics flavonoids carotenoids and
alkaloids in the wild edible lepiotoid and termitophilous mushrooms was done by
employing standard biochemical techniques
931 Evaluation for Phenolic compounds- Phenolic compounds in mushrooms are
known to contribute largely to antioxidant potential and are suggested to be major
bioactive compounds for health benefits associated with inhibition of atherosclerosis
and cancer (Cheung and Cheung 2005) In the last few years an increasing interest in
the consumption of mushrooms has arisen due to their elevated polyphenol
concentration which correlates with their elevated antioxidant activity Total phenolic
content of the edible termitophilous and lepiotoid mushrooms was determined
colorimetrically using Folin - phenol method Maximum amount of phenolic content
was documented in T microcarpus (2585 mgg) followed by T mammiformis (2249
mgg) and minimum amount of phenolic content was evaluated in M dolichaula (59
0
002
004
006
008
01
012
As
Cr
Hg
Pb
Cd
Ag
Species
(mg1
00g
of
Dry
Wei
ght)
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
283
mgg) Out of the examined species all species of Termitomyces contained substantial
amount of phenolics (Table 9)
932 Flavonoids - Flavonoids are also polyphenolic compounds that are ubiquitous
in nature The quantity of flavonoids ranged from 136 mgg in M rhacodes to 202
mgg in T microcarpus
933 Carotenoids - The β-carotene content was found in very low amount in
different species ranging from 011 μgg in T heimii to 050 μgg in T badius
Lycopene content ranged from 003 μgg in T heimii to 027 μgg in T striatus
Table 9- Phenolic compounds (mgg) Flavonoids (mgg) β-carotene (μgg)
Lycopene (μgg) and Alkaloids (mgg) in wild Termitomyces and Macrolepiota
species (On dry weight basis) (mean plusmn SD n = 3)
Sr
No Species
Phenolic
compounds
(mgg)
Flavonoids
(mgg) β-carotene
(μgg) Lycopene
(μgg) Alkaloids
(mgg)
1 T microcarpus 2585010 202017 028001 014002 0056003
2 T badius 1500050 149008 050003 019001 0052003
3 T medius 1641001 151001 017000 004000 0053009
4 T striatus 1504002 138002 039001 027002 0050016
5 T heimii 2132033 172002 011002 003002 0046004
6 T mammiformis 2249050 186015 027002 006001 0077005
7 T radicatus 2014005 167018 029000 009001 0046008
8 M dolichaula 590058 176020 012002 005001 0103001
9 M procera 110087 146004 029007 007000 0048003
10 M rhacodes 1681005 136003 026001 012002 0053002
CD at P le
(005) 030 091 005 010 0052
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
284
Fig 111 Bioactive compounds of 10 wild species of Termitomyces amp Macrolepiota
934 Alkaloids- Alkaloids are a group of naturally occurring chemical compounds
with neutral and even weakly acidic properties which finds use for therapeutic and
recreational purposes in many synthetic and semi-synthetic drugs to enhance or
change the primary effect of the drug and reduce unwanted side-effects M dolichaula
contained 0103 mgg of alkaloids which was maximum in comparison to all other
evaluated species of Macrolepiota and Termitomyces
94 Vitamins
Wild edible termitophilous and lepiotoid mushrooms were evaluated for the
amount of vitamin A vitamin B-complex and vitamin C The results have been
expressed in mg100 g for all vitamins in table-10 All the studied mushrooms
possessed significant amount of vitamins (Fig 112) The maximum content of
vitamin A in the analyzed mushrooms was observed in Lepiota humei (016 mg100
g) followed by T heimii (012 mg100 g) and minimum quantity was documented in
T reticulatus 001 mg100 g
-5
0
5
10
15
20
25
30
Phenolics ( mgg)
Flavonoids ( mgg)
β-carotene (μgg)
Lycopene (μgg)
Alkaloids (mgg)
mg
g (
Ph
eno
lic
fla
vo
no
ids
amp
ala
ka
loid
s) μg
g (
β c
aro
ten
e amp
lyco
pen
e) o
n d
ry w
eig
ht
Species
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
285
Table 10 Vitamins in different species of termitophilous and lepiotoid mushrooms
Sr
No Species
Vitamin A
(mg100 g)
Vitamin B1
(mg100 g)
Vitamin B2
(mg100 g)
Vitamin C
(mg100 g)
1 T reticulates 001plusmn000 026plusmn002 023plusmn001 145plusmn010
2 T heimii 012plusmn001 021plusmn001 025plusmn001 024plusmn001
3 T mammiformis 011plusmn001 028plusmn001 021plusmn001 030plusmn001
4 T radicatus 010plusmn002 042plusmn004 020plusmn001 096plusmn003
5 M dolichaula 007plusmn001 075plusmn005 013plusmn002 048plusmn002
6 M rhacodes 009plusmn000 080plusmn004 013plusmn003 036plusmn001
7 Lepiota humei 016plusmn001 049plusmn001 020plusmn003 018plusmn001
8 CD at Ple (005) 004 007 004 0030
Fig 112 Histogram showing contents of various vitamins in different species of
termitophilous and lepiotoid mushrooms
The thiamine (vitamin B1) content ranged from 021 mg100 g in T heimii to
080 mg100 g in M rhacodes The riboflavin (vitamin B2) content was maximum in
T heimii (025 mg100 g) and minimum in M rhacodes and M dolichaula (013
mg100 g) Ascorbic acid (vitamin C) was 145 mg100 g in T reticulatus which was
-02
0
02
04
06
08
1
12
14
16
18
Vitamin A
Vitamin B1
Vitamin B2
Vitamin C
Species
(mg1
00g
of
Dry
Wei
gh
t)
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
286
maximum in comparison to other species while minimum amount of Vitamin C was
documented in Lepiota humei (018 mg100 g)
95 Enzyme Assay
951 Lignocellulolytic enzyme production- In this study evaluation for the
production of extracellular oxidoreductases by different species using a test based on
an agar medium with ABTS was done The extracellular ABTS-oxidizing activity of
the fungal strains on the modified Kirk medium has been shown in Figs 113(A-E)
The present study for the presence of enzyme was undertaken on seven
cultures of wild mushrooms collected from different localities of North West India
These include Macrolepiota rhacodes M dolichaula Leucocoprinus cepaestipes
Lepiota humei Termitomyces radicatus T heimii and T mammiformis Out of these
Macrolepiota rhacodes showed high ABTS-oxidizing activity while Macrolepiota
dolichaula showed very low ABTS-oxidizing activity in comparison However the
absence of extracellular ABTS-oxidizing activity does not necessarily imply the lack
of capacity to produce these oxidative enzymes but could reflect a possible inhibition
of their expression
As a matter of fact the oxidative enzyme system is not homogeneous and its
production and properties depend on the conditions and culture media (Heinzkill and
Messner 1997) Fungal strains oxidized ABTS to dark green ABTS cation radicals
(ABTS+
) indicating the production of extracellular oxidoreductases Macrolepiota
rhacodes and Lepiota humei gave positive reaction immediately after inoculation and
formed dark green zone around the mycelia bit while Leucocoprinus cepaestipes
showed light green zone on 3rd
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
287
Figs 113 (A-E) Showing extracellular ABTS oxidizing activity on agar plate
A Lepiota humei B M rhacodes
C L cepaestipes D T heimii
E M dolichaula
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
288
Fig 114 Histogram showing variation in protein concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 115 Histogram showing variation in protein concentration with respect to
number of days in Czapek medium(CZP)
0
5
10
15
20
25
30
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Con
cen
trati
on
microgm
l)
Species
-5
0
5
10
15
20
After 5 days (microgml)
After 10 days (microgml)
After 15 days (microgml)
Species
Con
cen
trati
on
(micro
gm
l)
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
289
Fig 116 Graph showing variation in Laccase concentration with respect to
number of days in Wheat straw medium (WSE)
Fig 117 Graph showing variation in Laccase concentration with respect to
number of days in Czapek medium (CZP)
-5
0
5
10
15
20
25
30
35
40
45
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
-5
0
5
10
15
20
25
After 5 days (Uml)
After 10 days (Uml)
After 15 days (Uml)
Species
Lacc
ase
Um
l
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
290
Table 11- Activities of lignolytic enzymes of different cultures on different media and
intervals
Variety Medium
5 Days 10 Days 15 Days
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
Laccase
(Uml)
Protein
(microgml)
L humei Czp 30plusmn010 17plusmn050 420plusmn033 150plusmn005 455plusmn100 087plusmn001
WSE 208plusmn070 215plusmn100 2692plusmn004 55plusmn050 3466plusmn059 350plusmn020
M dolichaula Czp 00013plusmn00 168plusmn010 039plusmn003 52plusmn018 178plusmn009 108plusmn002
WSE 0033plusmn00 199plusmn101 535plusmn015 48plusmn005 56plusmn003 280plusmn020
M rhacodes Czp 1107plusmn012 167plusmn025 1748plusmn084 29plusmn005 1935plusmn151 018plusmn001
WSE 2330plusmn10 236plusmn090 2669plusmn001 854plusmn036 3925plusmn078 483plusmn002
L cepaestipes Czp 074plusmn002 175plusmn050 12plusmn020 21plusmn010 358plusmn087 080plusmn008
WSE 185plusmn005 207plusmn044 524plusmn001 750plusmn018 159plusmn165 330plusmn002
T heimii Czp 004plusmn001 168plusmn022 063plusmn002 33plusmn010 10plusmn033 059plusmn006
WSE 060plusmn006 220plusmn200 095plusmn002 632plusmn028 10plusmn002 291plusmn009
T mammiformis Czp 005plusmn001 166plusmn013 010plusmn00 51plusmn036 366plusmn091 174plusmn005
WSE 344plusmn005 214plusmn034 573plusmn001 491plusmn008 666plusmn083 120plusmn001
T radicatus
Czp 000plusmn000 170plusmn005 13plusmn010 11plusmn018 222plusmn020 032plusmn002
WSE 023plusmn002 207plusmn070 199plusmn011 598plusmn010 22plusmn006 291plusmn001
CD at Ple (005) Czp 0042 024 026 014 069 003
WSE 034 081 054 021 059 018
day after inoculation followed by Macrolepiota dolichaula on 12th
day after
inoculation while other mushroom mycelia showed very light green colour zone after
15th
day of inoculation Laccase activity has not been observed in T radicatus and T
mammiformis The results obtained are depicted in table 11 and figures 113 to 117
(a) Estimation of extracellular protein- All the cultures of termitophilous and
lepiotoid mushrooms were evaluated for the occurrence of extracellular protein
activity The net extracellular protein activity was higher after the 5th
day of
inoculation in M rhacodes (236 microgml) on wheat straw extract followed by T heimii
(222 microgml) on the same substrate and least amount of extracellular protein have
been detected in M dolichaula (199 microgml) again on wheat straw medium The
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
291
extracellular protein activity was maximum in M rhacodes (854 microgml) followed by
L cepaestipes (750 microgml) and least amount in M dolichaula (48 microgml) on wheat
straw extract after 10th
day of inoculation Fifteenth day of inoculation gave least
extracellular protein activity which was 483 microgml in M rhacodes followed by L
cepaestipes (330 microgml) and least amount was obtained T mammiformis (120 microgml)
on wheat straw extract thereafter increase in number of days decreased the
extracellular protein activity From the results obtained thereoff wheat straw
substrate proved to be the best substrate for extra-cellular protein activity while
Czapek Dox agar produced less protein in general Following maximum development
after 15th
the day of incubation extracellular protein activity started dipping depicting
initiation of senescence resulting in decline in enzymatic activity (Table - 11)
(b) Estimation of extracellular Laccase activity - On the basis of presence of
colour intensity of the medium extracellular enzymatic laccase activity was further
evaluated for quantitative analysis Extracellular laccase activity was observed
maximum in M rhacodes (2330 Uml) followed by L humei (208 Uml) and
minimum amount in M dolichaula (0033 Uml) on 5th
day of inoculation on wheat
straw extract Laccase activity was found to be maximum in L humei (2692 Uml)
followed by M rhacodes (2669 Uml) and minimum in T radicatus (199 Uml) on
10th
day of inoculation on wheat straw extract Laccase activity was found to be
highest in M rhacodes (3925 amp 1935 Uml) and L humei (3466 amp 455 Uml)
respectively on 15th
day of incubation in both Wheat straw extract and Czapek
medium and least extracellular laccase activity was recorded in T heimii (10 Uml)
under these conditions
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
292
Figs 118 (A-E) Different species showing degradation of CMC by the production of
extracellular enzyme
D M rhacodes
A M dolichaula
C L cepaestipes
E T mammiformis
B T heimii
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone
Nutritional and Nutraceutical evaluation
293
952 Evaluation of Cellulase activity- Mushrooms have ability to digest
lignocellulosic substrates During the present study seven species were studied for the
production of cellulase enzymes Out of the seven species the mycelia of
Macrolepiota dolichaula M rhacodes Leucocoprinus cepaestipes Termitomyces
heimii and T mammiformis demonstrated their ability to degrade cellulose (Figs
118A-E) The conclusions drawn are based on opaque clearance zones produced
around the growing fungal colonies after 5 - 7 days of inoculation indicating
degradation of CMC by the production of extracellular enzyme ie Cellulase or
CMCase As compared the mycelia of Termitomyces radicatus and Lepiota humei
does not show any type of clear zone