Studies on mediators of manganese peroxidase for bleaching of wood pulps

Bioresour Technol. 2002 Dec;85(3):249-52. doi: 10.1016/s0960-8524(02)00132-3.

Abstract

In order to enhance the bleaching effect of manganese peroxidase (MnP), unsaturated fatty acids, thiol-containing compounds and various other organic compounds were applied in pulp bleaching experiments with MnP. Thiol-containing compounds did not improve the pulp bleaching effect by MnP. Some unsaturated fatty acids, linoleic acid and linolenic acid provided a better pulp bleaching effect than Tween 80. The correlation between the number of C=C bonds in a fatty acid and its pulp bleaching effect was also investigated. The MnP pulp bleaching capability was shown to depend on the carboxylic acid used. A combination of Tween 80 and a carboxylic acid resulted in higher pulp brightness than that obtained with Tween 80 alone. A laccase mediator, 3-hydroxy-1,2,3-benzotriazin-4(3H)-one, could also enhance the MnP pulp bleaching effect.

Publication types

  • Comparative Study
  • Evaluation Study

MeSH terms

  • Basidiomycota / enzymology
  • Carboxylic Acids / chemistry*
  • Enzyme Activation
  • Laccase
  • Lignin / chemistry*
  • Lipids / chemistry*
  • Oxidoreductases / chemistry
  • Paper
  • Peroxidases / biosynthesis
  • Peroxidases / chemistry*
  • Peroxidases / isolation & purification
  • Polysorbates / chemistry
  • Quality Control
  • Sensitivity and Specificity
  • Statistics as Topic
  • Sulfhydryl Compounds / chemistry*
  • Wood*

Substances

  • Carboxylic Acids
  • Lipids
  • Polysorbates
  • Sulfhydryl Compounds
  • Kraft lignin
  • Lignin
  • Oxidoreductases
  • Laccase
  • Peroxidases
  • manganese peroxidase