文献类型：期刊文献

英文题名：Lignin Biodegradation and Its Valorization

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]

第一作者：Cui, Lingwei

通讯作者：Zheng, YN[1];Zhao, YX[2]

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

第一机构：Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, Beijing 100101, Peoples R China

通讯机构：[1]corresponding author), Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, Beijing 100101, Peoples R China;[2]corresponding author), Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2022

卷号：8

期号：8

外文期刊名：FERMENTATION-BASEL

收录：;Scopus(收录号：2-s2.0-85136828105);WOS:【SCI-EXPANDED(收录号:WOS:000846968800001)】；

基金：The writing of the manuscript was sponsored by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA28030201), the National Natural Science Foundation of China (91851102 and 32070034), the National Key R&D Program of China (2020YFA0906800) and the Senior User Project of RV KEXUE, Center for Ocean Mega-Science, Chinese Academy of Sciences (KEXUE2019GZ05).

语种：英文

外文关键词：lignin; biodegradation; pathway; value-added chemicals; valorization

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.