microbes in human welfare
TRANSCRIPT
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MICROBES IN HUMAN MICROBES IN HUMAN WELFAREWELFARE
PREPARED BYS RATH
PGT BIOLOGYKendriya Vidyalaya
www.cbse123.co.cc
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MICROBES
Bacteria Fungi Protozoa Certain algae Viruses viroids
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USEFUL ASPECTS OF MICROBES
BIOFERTILISER
BIOCONTROL AGENT
BIOGASPRODUCTION
SEWAGETREATMENT
INDUSTRIALPRODUCTS
HOUSEHOLDPRODUCTS
MICROBESIN
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MICROBES IN HOUSEHOLD PRODUCTS
Production of curd from milk Check disease causing microbe in our
stomach Fermentation of dough of idli, dosa and bread Fermentation of traditional drinks like ‘toddy’ Fermentation of fish, soyabean and bamboo
shoots Production of different varieties of cheese like
‘Swiss cheese’, ‘Roquefort cheese’ etc.
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MICROBES IN HOUSEHOLD PRODUCTS
Sl.No
Name of microbes
Role
1 Lactobacillus Convert milk into curd
2 LAB- lactic acid bacteria
Convert milk into curdIncrease vitamin B12 in milk
Check growth of pathogens in stomach
3 Saccharomyces cerevisiae
fermentation
4 Propionibacterium sharmanii
Swiss cheese
5 A specific fungi Roquefort cheese
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MICROBES IN INDUSTRIAL PRODUCTS Fermented beverages Antibiotics Chemicals Enzymes Bioactive molecules
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FERMENTED BEVERAGES(YEAST)
Fermentation of fruit juices and malted cereals into ethanol.
Alcoholic drinks- (a) with distillation-whisky, rum, brandy (b) without distillation- wine, beer
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ANTIBIOTICS
Chemical substances, produced by some microbes and can kill or retard the growth of other disease causing microbes.
E.g. Penicillin obtained from fungus Penicillum notatum.
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CHEMICALS (Organic Acids & Alcohol)
SL. NO.
Chemicals Microbes
1 Citric acid Aspergillus niger (fungus)
2 Acetic acid Acetobacter aceti (bacterium)
3 Butyric acid Clostridium butylicum bacterium)
4 Lactic acid Lactobacillus delbrueckii bacterium)
5 ethanol Saccharomyces cereviseae (fungus)
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ENZYMES
Sl. No.
Enzymes Role
1 lipases Remove oily stain from laundry
2 Pectinases & proteases
Clear fruit juices during bottling
3 streptokinase
‘clot buster’ remove blood clots from patients
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BIOACTIVE MOLECULES
Chemicals
Cyclosporin A
Microbes
Trichoderma polysporum (fungus)
Role
Immuno supressive agent
statins Monascus purpureus (yeast)
Lowers blood cholesterol levels
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