INVITRO DEPOLYMERIZATION OF LIGNIN BY MANGANESE PEROXIDASE OF PHANEROCHAETE-CHRYSOSPORIUM

被引：271
|
作者：
WARIISHI, H [1 ]
VALLI, K [1 ]
GOLD, MH [1 ]
机构：
[1] OREGON GRAD INST SCI & TECHNOL,DEPT CHEM & BIOL SCI,19600 NW VONNEUMANN DR,BEAVERTON,OR 97006
来源：
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 1991年 / 176卷 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0006-291X(91)90919-X
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Homogeneous manganese peroxidase catalyzed the in vitro partial depolymerization of four different 14C-labeled synthetic lignin preparations. Gel permeation profiles demonstrated significant depolymerization of 14C-sidechain-labeled syringyl lignin, a 14C-sidechain-labeled syringyl-guaiacyl copolymer (angiosperm lignin), and depolymerization of 14C-sidechain- and 14C-ring-labeled guaiacyl lignins (gymnosperm lignin). 3,5-Dimethoxy-1,4-benzoquinone, 3,5-dimethoxy-1,4-hydroquinone, and syringylaldehyde were identified as degradation products of the syringyl and syringyl-guaiacyl lignins. These results suggest that manganese peroxidase plays a significant role in the depolymerization of lignin by Phanerochaete chrysosporium. © 1991.
引用
收藏
页码：269 / 275
页数：7
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