香菇锰（II）-过氧化物酶对酚类和非酚类残余硫酸盐木质素模型化合物的反应活性。

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

作者信息

Crestini C, D'Annibale A, Sermanni G G, Saladino R

机构信息

Dipartimento di Scienze e Tecnologie Chimiche, Universitá di Tor Vergata, Rome, Italy.

出版信息

Bioorg Med Chem. 2000 Feb;8(2):433-8. doi: 10.1016/s0968-0896(99)00303-x.

DOI:10.1016/s0968-0896(99)00303-x

PMID:10722166

Abstract

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.

摘要

将三种代表残余硫酸盐木质素键合模式的酚类模型化合物与香菇的锰过氧化物酶一起孵育。观察到所有酚类模型都有广泛的降解，主要通过侧链苄基氧化发生。在测试的模型化合物中，二苯基甲烷α-5酚类模型被发现反应性最强，产生了几种在桥接位置显示氧化和断裂的产物。发现非酚类的5-5'联苯和5-5'二苯基甲烷模型无反应性。