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
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
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DOI：
10.1111/j.1574-6968.1999.tb13354.x
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发表时间：
1999-01-01
影响因子：
2.1
通讯作者：
Ohashi, H
中科院分区：
文献类型：
--
作者：
Kawai, S;Asukai, M;Ohashi, H
一种β-O-4木质素亚结构模型化合物，2-（2，6-二甲氧基-4-甲酰基苯氧基）-1，3-二羟基-1-（4-乙氧基-3-甲氧基苯基）丙烷。在1-羟基苯并三氮唑存在下，云芝漆酶对该酶进行氧化，得到4种产物：2，3-二羟基-1-（4-乙氧基-3-甲氧基苯基）丙酮、1-（4-乙氧基-3-甲氧基苯基）-3-羟基丙酮。4-乙氧基-3-甲氧基苯甲酸和2，6-二甲氧基-对苯醌。结果表明，漆酶-1-羟基苯并三唑偶联物催化β-醚裂解、C α-C β裂解和C α-氧化三种反应。此外，由[β-C-14]松柏醇制备的聚合愈创木基木质素模型化合物的解聚也由该系统引起。(C)1999年，欧洲微生物学会联合会。由Elsevier Science B. V.出版，版权所有。
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.