Studies on mediators of manganese peroxidase for bleaching of wood pulps

被引：37

作者：

Bermek, H ^{[1
]}

Li, KC

Eriksson, KEL

机构：

[1] Istanbul Tech Univ, Dept Mol Biol & Genet, TR-80626 Istanbul, Turkey

[2] Oregon State Univ, Dept Wood Sci & Engn, Corvallis, OR 97331 USA

[3] Swedish Pulp & Paper Res Inst, SE-11486 Stockholm, Sweden

来源：

BIORESOURCE TECHNOLOGY | 2002年 / 85卷 / 03期

关键词：

pulp bleaching; manganese peroxidase; mediator; lipid peroxidation; lignin degradation;

D O I：

10.1016/S0960-8524(02)00132-3

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：249 / 252

页数：4

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