Microbial degradation of lignin : Role of lignin peroxidase , manganese peroxidase , and laccase

Content Provider	Semantic Scholar
Author	Higuchi, By Takayoshi
Copyright Year	2004
Abstract	Lignin peroxidase (LiP), laccase (LA) and manganese peroxidase (MnP) of white-rot basidiomycetes such as Phanerochaete chrysosporium, Coliorus versicolor, Phlebia radiata and Pleurotus eryngii catalyze oxidative degradation of lignin substructure model compounds and synthetic lignins (DHPs). Side chainand aromatic ring cleavage products of both phenolic and non-phenolic substrates oxidized by LiP were isolated and characterized by NMR and MS. The cleavage mechanism was elucidated by using O, H, and C labeled lignin substructure dimers with 18O2 and H2 O. Recent studies suggested that LiP is capable of oxidizing lignin directly at the protein surface via a long-range electron transfer process. LA and MnP, which oxidize phenolic but not non-phenolic moieties, generally degrade lignin stepwise from phenolic moieties. However, recent studies indicated that MnP and LA can degrade both phenolic and non-phenolic aromatic moieties of lignin with some special mediators.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www.jstage.jst.go.jp/article/pjab/80/5/80_5_204/_pdf
Language	English
Access Restriction	Open
Subject Keyword	AROMATICS Basidiomycota Chrysosporium Electron Transport Elegant degradation Laccase Membrane Proteins Optimal substructure Phanerochaete Phenol formaldehyde resin Pleurotus Software rot Stepwise regression Synthetic intelligence Tracer lignin peroxidase manganese peroxidase phenolics
Content Type	Text
Resource Type	Article