Degradation of a non-phenolic β-O-4 substructure and of polymeric lignin model compounds by laccase of Coriolus versicolor in the presence of 1-hydroxybenzotriazole

被引：42

作者：

Kawai, S ^{[1
]}

Asukai, M ^{[1
]}

Ohya, N ^{[1
]}

Okita, K ^{[1
]}

Ito, T ^{[1
]}

Ohashi, H ^{[1
]}

机构：

[1] Gifu Univ, Fac Agr, Dept Appl Bioorgan Chem, Gifu 5011193, Japan

来源：

FEMS MICROBIOLOGY LETTERS | 1999年 / 170卷 / 01期

关键词：

laccase; 1-hydroxybenzotriazole; lignin; beta-ether cleavage; C alpha-C beta cleavage; depolymerization;

D O I：

10.1111/j.1574-6968.1999.tb13354.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

A beta-O-4 lignin substructure model compound, 2-(2,6-dimethoxy-4-formylphenoxy)-1,3-dihydroxy-1-(4-ethoxy-3-methoxyphenyl)propane. was oxidized by Coriolus versicolor laccase in the presence of 1-hydroxybenzotriazole to form four products: 2,3-dihydroxy-1-(4-ethoxy-3-methoxyphenyl)propanone, 1-(4-ethoxy-3-methoxyphenyl)-3-hydloxypropanone. 4-ethoxy-3-methoxybenzoic acid, and 2,6-dimethoxy-p-benzoquinone. The results show that three types of the reactions, beta-ether cleavage, C alpha-C beta cleavage, and C alpha-oxidation are catalyzed by laccase-1-hydroxybenzotriazole couple. Furthermore, depolymerization of a polymeric guaiacyl lignin model compound prepared from [beta-C-14]coniferyl alcohol was also caused by this system. (C) 1999 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.

引用

页码：51 / 57

页数：7

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