Biobleaching (11 résultats)

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Taschenbuch. Etat : Neu. Xylanases of Coprinellus disseminatus for Pulp and Paper Industry | Production, Characterization and Application in Biobleaching of Wheat Straw Pulp | Shalini Singh (u. a.) | Taschenbuch | 152 S. | Englisch | 2013 | LAP LAMBERT Academic Publishing | EAN 9783659419584 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

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Taschenbuch. Etat : Neu. Purification and characterization of xylanase in SSF of apple pomace | Production, purification, characterization and application of cellulase free xylanase in biobleaching of pulp | Abhishek Walia (u. a.) | Taschenbuch | 284 S. | Englisch | 2015 | LAP LAMBERT Academic Publishing | EAN 9783659504310 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

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Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The Indian pulp and paper industry is facing multifarious challenges-tough competition from imports, obsolete technology, soaring energy and environmental costs, minimum profit level and an inadequate supply of low-cost fiber- to survive in the global competitive market.Strict legislation and environmental concerns regarding effluent discharge with reference to adsorbable organic halides is forcing the paper mills to reduce or eliminate the use of elemental chlorine in pulp bleaching. Agri-residues like straws are significant alternative raw materials for the pulp and paper industry.Biotechnology allows the development of more sustainable and environment friendly bleaching techniques. This has drawn the attention of researchers towards xylanases as biobleaching agents and white rot fungi as a potent source of xylanases. This study reports the production of xylanases from Coprinellus disseminatus under solid state fermentation and its application in biobleaching of wheat straw pulp. The work adds to the development of environment friendly technologies for pulp and paper industry using biotechnological applications.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Xylan is the major hemicellulosic constituent of hard and soft wood, and is the next most abundant renewable polysaccharide after cellulose.Xylanases and associated debranching enzymes produced by a variety of microorganisms including bacteria, yeast and filamentous fungi, bring about the hydrolysis of hemicelluloses. Xylanolytic enzymes are receiving increasing attention because of their potential application in pulp bleaching and bioconversion of lignocelluloses into feedstocks and fuels.The xylan degrading system includes endo-1,4-xylanases (1,4-beta-xylan xylanohydrolase; EC 3.2.1.8), which release long and short xylo-oligosaccharides, and other xylanases that attack only longer chains, and beta-D-xylosidase (1,4-beta-xylan xylohydrolase; EC 3.2.1.37), which remove D-xylose residues from short xylo-oligosaccharides. Cellulase-free xylanases are important in the paper and pulp industry as alternatives to the use of toxic chlorinated compounds. For the last two decades the bleaching of pulp has become an issue of great concern, primarily because of the environmental hazards caused by the release of the adsorbable organic halogens and due to increasing public awareness thereof.…