Production, characterization and application of the cellulase-free xylanase from Aspergillus niger.
The effects of carbon source on xylanase and cellulase production were studied. The extract of steam-exploded corn stover was found to be the best raw material for producing cellulase-free xylanase. The xylanolytic enzymes of Aspergillus niger An-76 were purified by chromatography, and the properties of the four purified components were analyzed. When the enzyme was used to treat the birch Kraft pulp, and followed by a subsequent CEH bleaching, a brightness of 6.8% SBD more than that of the untreated one using the same chlorine dosage, or a saving of nearly 50% of chlorine consumption with the same brightness, was realized.
Qy
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Institute of Microbiology, Shandong University, Jinan, P.R. China.
Gao
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P
Wang
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Zhao
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Zhang
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D001234:Aspergillus niger / Q000201:enzymology*; D002480:Cellulase / Q000032:analysis* / Q000096:biosynthesis; D003470:Culture Media; D007218:Industrial Microbiology; D010936:Plant Extracts / Q000378:metabolism; D014908:Triticum; D043325:Xylan Endo-1,3-beta-Xylosidase; D014995:Xylosidases / Q000096:biosynthesis* / Q000302:isolation & purification; D003313:Zea mays
D003470:Culture Media; D010936:Plant Extracts; D014995:Xylosidases; D043325:Xylan Endo-1,3-beta-Xylosidase; D002480:Cellulase