Lignin Biodegradation and Its Valorization

被引：19

作者：

Cui, Lingwei ^{[1
,2
]}

Wang, Zheyi ^{[1
,2
]}

Zeng, Yan ^{[1
]}

Yang, Niping ^{[3
]}

Liu, Mengshuang ^{[1
,2
]}

Zhao, Youxi ^{[4
]}

Zheng, Yanning ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, Beijing 100101, Peoples R China

[2] Univ Chinese Acad Sci, Coll Life Sci, Beijing 100101, Peoples R China

[3] Hebei Univ, Sch Life Sci, Baoding 071002, Peoples R China

[4] Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China

来源：

FERMENTATION-BASEL | 2022年 / 8卷 / 08期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

lignin; biodegradation; pathway; value-added chemicals; valorization; TRAMETES-VERSICOLOR LACCASE; MANGANESE PEROXIDASE; KRAFT LIGNIN; MODEL DIMER; PHANEROCHAETE-CHRYSOSPORIUM; POLYCHLORINATED-BIPHENYLS; BIOLOGICAL VALORIZATION; ENZYMATIC DEMETHYLATION; BACTERIAL LACCASE; FENTON CHEMISTRY;

D O I：

10.3390/fermentation8080366

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Lignin, a rigid polymer composed of phenolic subunits with high molecular weight and complex structure, ranks behind only cellulose in the contribution to the biomass of plants. Therefore, lignin can be used as a new environmentally friendly resource for the industrial production of a variety of polymers, dyes and adhesives. Since laccase was found to be able to degrade lignin, increasing attention had been paid to the valorization of lignin. Research has mainly focused on the identification of lignin-degrading enzymes, which play a key role in lignin biodegradation, and the potential application of lignin degradation products. In this review, we describe the source, catalytic specificity and enzyme reaction mechanism of the four classes of the lignin-degrading enzymes so far discovered. In addition, the major pathways of lignin biodegradation and the applications of the degradative products are also discussed. Lignin-degrading bacteria or enzymes can be used in combination with chemical pretreatment for the production of value-added chemicals from lignin, providing a promising strategy for lignin valorization.

引用

页数：19

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