The reactivity of phenolic and non-phenolic residual kraft lignin model compounds with Mn(II)-peroxidase from Lentinula edodes

被引：23

作者：

Crestini, C

D'Annibale, A

Sermanni, GG

Saladino, R

机构：

[1] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy

[2] Univ Tuscia, Dipartimento Agrobiol & Agrochim, I-01100 Viterbo, Italy

来源：

BIOORGANIC & MEDICINAL CHEMISTRY | 2000年 / 8卷 / 02期

关键词：

Mn(II)-peroxidase; Lentinula edodes; lignin degradation; lignin models;

D O I：

10.1016/S0968-0896(99)00303-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：

Three phenolic model compounds representing bonding patterns of residual kraft lignin were incubated with manganese peroxidase from Lentinula edodes. Extensive degradation of all the phenolic models, mainly occurring via side-chain benzylic oxidation, was observed. Among the tested model compounds the diphenylmethane alpha-5 phenolic model was found to be the most reactive, yielding several products showing oxidation and fragmentation at the bridging position. The non-phenolic 5-5' biphenyl and 5-5' diphenylmethane models were found unreactive. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：433 / 438

页数：6

共 35 条

[11] The reactions of chromophores of the stilbene type with hydroxyl radical (HO center dot) and superoxide radical (O center dot(-)(2)/HO2 center dot) .2. Reactions other than cleavage of the conjugated double bond [J].