biopulping asadi

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The use of enzymes in the pulp and paper industry wasintroduced in the 1986.

Cellulase, xylanase, laccase and lipase

Enzymes innovation fiber modification

Web of Science database ,CAPES portal from 1945 to July

2010 International Patent Classification (IPC)

C12N ,IP=(C12N*) TS=(enzyme and pulp or paper)

1048 documents

602 of the original 1048 documents were strictly related to the

use of enzymes in the processing of pulp and paper


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Xylanase prebleaching technology

8% of Canadas bleached kraft pulp (830,000 tonnes) in 1994

In Scandinavia , 9 mills using xylanase in 1999

In 2002 , 20 mills using xylanase in North America Nissen et al. (1992) xylanases , pH adjustment of pulp from pH 1011 to

68

extremophilic bacteria

Tolan et. al. (1995) enzymes to be more resilient to pH temperatureconditions, for greater delignification

Van der Burgt (2002) xylanase ,more effective

Nagar et al., 2010; Azeri et al., 2010; Bai et al. 2010; Zhang et al., 2010;Kaur and Mahajan, 2011; Joshi and Khare, 2011; Mishra and Thakur, 2011

, more thermostable and highly pH-adaptable

recombinant DNA

mutagenesis


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Biopulping

Fungi as a pretreatment prior to refining

Treatment of wood chips or other lignocellulosicraw materials

White-rot fungi

Improve cooking liquor penetration

lower refining energy requirement

higher strength two-week fungal treatments suggested , wood

weight loss is only 2%

h h h i


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Phanerochaete chrysosporium

Ceriporiopsis subvermispora


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Enzymatic pathways associated with lignin and cellulose degradation by

Phanerochaete chrysosporium. (1) glyoxal oxidase, (2) lignin peroxidase,

(3) manganese peroxidase, (4) laccase, (5) cellobiose dehydrogenase, (6) cellobiose:

quinone oxidoreductase, (7) protease (8) lactonase, (9) endo-1,4--glucanase, (10) exo-

1,4--glucanase, (11) 1,4---glucosidase, (12) glucose-1-oxidase, (13) catalase.


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LigninLignin peroxidaseperoxidase

ManganeseManganese peroxidaseperoxidase


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Ceriporiopsis subvermispora

laccase and Mn-peroxidase Phanerochaete chrysosporium lignin peroxidase (LiP) nonphenolic lignin by , -cleavage Mn-peroxidase , catalyze

selectively delignifying fungi , colonize wood via the raycells uranyl acetate , acidic groups lumen to within the secondary wall easier penetration of the ions into the fiber wall decreased UV for lignin of middle lamellae and

secondary walls


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proteins of defined size

Insulin (5,700 Da) Myoglobin (17,600 Da)

Ovalbumin (44,287 Da)

chelated Mn(III),direct product of Mn-peroxidaseaction

Biodegradation of wood polysaccharides

nonligninolytic fungus,Ophiostoma piliferum, knowncommercially as the Cartapip process

increases the rate of diffusion of NaOH into the wood USDA Forest Products Laboratory in Madison,

Wisconsin

Yadav et all biopulping and its


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Yadav et all, biopulping and its

potential to reduce effluent loads from

bleaching of hardwood Kraft pulp

Ceriporiopsis subvermispora 4.8%

4.7% 32.6% COD 41.5% BOD

12% AOX (organohalogens)


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Albino Fungal Effects on TMP and

Dissolving Pulp Mill OperationsHydrocarbons, Fatty acids, Resin acids, Steroidhydrocarbons, Sterols, Steroid ketones ,

Squalene, -Tocopherol , Sterol esters &triglycerides


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Application of thermoalkalophilic xylanase from Arthrobacter sp.

MTCC 5214 in biobleaching of kraft pulp


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Hydrolysis of different chain length xylooliogmers by

cellulase and hemicellulase

Production and partial purification of xylanase from


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Production and partial purification of xylanase from

a new thermophilic isolate

Xylitol production via catalytic hydrogenation


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Xylitol production via catalytic hydrogenation

of sugarcane bagasse dissolving pulp liquid

effluents over Ru/C catalyst


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Enzymatic grafting of simple phenols on flax and sisal pulp fibres

using laccases


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Wood and Cellulose Conference


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Wood and Cellulose Conference

April 9-11, 2000

Syracuse, New York, USA

Chemicals and Biofuels from Hardwood, Fuel Crops and

Agricultural Wastes Expression of white-rot fungi manganese peroxidase

(MnP) in the yeast Pichia pastoris

Site-Directed Mutagenesis ofThermobifida Fusca

Cellulases Cel6A and Cel6B The Biofine Technology: Thermochemical Conversion of

Cellulosic Biomass to Fuels and Chemicals

Improved Cellulases for Bioethanol Production

Laccase Enhancements in Lignocellulosic Biotechnologies

Enhancing Mechanical Pulping with Fungal Pretreatmentin the Wood Yard

Mechanisms in Cellulose Biosynthesis


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PratimaPratima BAJPAI , BIOTECHNOLOGY FOR PULP AND PAPER PROCESSING , SPRINGERBAJPAI , BIOTECHNOLOGY FOR PULP AND PAPER PROCESSING , SPRINGER

20122012

AndrAndr Ferraz,AnaFerraz,Ana MM CCrdovardova, Angela, Angela MachucaMachuca; Wood biodegradation and enzyme production by; Wood biodegradation and enzyme production byCeriporiopsissubvermisporaCeriporiopsissubvermispora during solidduring solid--state fermentation of Eucalyptusstate fermentation of Eucalyptus grandisgrandis

BrazBraz J.J. DemunerDemuner,, NeiNei Pereira Junior, Adelaide M.S.Pereira Junior, Adelaide M.S. AntunesAntunes, Technology Prospecting on Enzymes, Technology Prospecting on Enzymesfor the Pulp and Paper Industryfor the Pulp and Paper Industry

I. D. Reid, R. Bourbonnais, and M. G. Paice , Biopulping and Biobleaching Lignin & lignans 2010Taylor and Francis Group

Yadav et al, biopulping and its potential to reduce effluent loads from bleaching of hardwood Kraftpulp

Dinesh Kumar,et al, Production and partial purification of xylanase from a new thermophilic isolate

HM Baudel, CAM de Abreu and CZ Zaror ,Xylitol production via catalytic hydrogenation ofsugarcane bagasse dissolving pulp liquid effluents over Ru/C catalyst

Elisabetta Aracri et al, Enzymatic grafting of simple phenols on flax and sisal pulp fibres using

laccases Roberta L Farrell,et al, Albino Fungal Effects on TMP and Dissolving Pulp Mill Operations

Rakhee Khandeparkar, Narayan B. Bhosle , Application of thermoalkalophilic xylanase fromArthrobacter sp. MTCC 5214 in biobleaching of kraft pulp

Qing Qing, Charles E. Wyman , Hydrolysis of different chain length xylooliogmers by cellulase andhemicellulase

BRIAN VAN DRIESSEL, BIOREMEDIATION OF A BLEACH PLANT EFFLUENT FROM THEPULP AND PAPER INDUSTRY

http://http://en.wikipedia.org/wiki/Lignin_peroxidaseen.wikipedia.org/wiki/Lignin_peroxidase

http://microbewiki.kenyon.edu/index.php/Phanerochaete_chrysosporhttp://microbewiki.kenyon.edu/index.php/Phanerochaete_chrysosporiumium

http://http://www.micron.ac.uk/organisms/csu.htmlwww.micron.ac.uk/organisms/csu.html

http://http://www.jgi.doe.gov/sequencing/why/csubvermispora.htmlwww.jgi.doe.gov/sequencing/why/csubvermispora.html

http://http://en.wikipedia.org/wiki/Manganese_peroxidaseen.wikipedia.org/wiki/Manganese_peroxidase


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biopulping asadi

Documents