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Production, characterization, and application of the cellulase-free xylanase fromAspergillus niger

  • Qu Yinbo
  • Gao Peiji
  • Wang Dong
  • Zhao Xin
  • Zhang Xiao
Session 2 Applied Biological Research

Abstract

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 ofAspergillus 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.

Index Entries

Xylanase cellulase-free Aspergillus niger pulp bleaching 

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Copyright information

© Humana Press Inc. 1996

Authors and Affiliations

  • Qu Yinbo
    • 1
  • Gao Peiji
    • 1
  • Wang Dong
    • 1
  • Zhao Xin
    • 1
  • Zhang Xiao
    • 2
  1. 1.Institute of MicrobiologyShandong UniversityJinanP. R. China
  2. 2.Chemical Engineering CollegeNanjing Forestry UniversityNanjingP. R. China

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