Depolymerization and conversion of lignin to value-added bioproducts by microbial and enzymatic catalysis
Weng,Caihong1,2; Peng,Xiaowei1,2; Han,Yejun1,2
Source PublicationBiotechnology for Biofuels
AbstractAbstractLignin, the most abundant renewable aromatic compound in nature, is an excellent feedstock for value-added bioproducts manufacturing; while the?intrinsic heterogeneity and recalcitrance of which hindered the efficient lignin biorefinery and utilization. Compared with chemical processing, bioprocessing with microbial?and enzymatic catalysis is a clean and efficient method?for lignin depolymerization and conversion. Generally,?lignin bioprocessing involves lignin decomposition to?lignin-based aromatics?via extracellular microbial enzymes and further converted to?value-added bioproducts through microbial metabolism. In the review, the most recent advances in degradation and conversion of?lignin?to value-added bioproducts catalyzed by microbes and enzymes were summarized.?The lignin-degrading microorganisms of white-rot fungi, brown-rot fungi, soft-rot fungi, and bacteria under aerobic and anaerobic conditions were comparatively analyzed. The catalytic metabolism of the microbial lignin-degrading enzymes of laccase, lignin peroxidase, manganese peroxidase, biphenyl bond cleavage enzyme, versatile peroxidase, and β-etherize was discussed. The microbial metabolic process of H-lignin, G-lignin, S-lignin based derivatives, protocatechuic acid, and catechol was reviewed. Lignin was depolymerized to?lignin-derived aromatic compounds?by the?secreted enzymes of?fungi and bacteria, and the?aromatics were converted to?value-added compounds through microbial catalysis and metabolic engineering. The review also proposes new insights for future work to overcome the?recalcitrance of?lignin and convert it to value-added bioproducts by microbial and enzymatic catalysis.
KeywordLignin Depolymerization Enzymatic degradation Lignin-derived aromatics Metabolic pathways Value-added bioproducts Biosynthesis
WOS IDBMC:10.1186/s13068-021-01934-w
PublisherBioMed Central
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Document Type期刊论文
Corresponding AuthorHan,Yejun
Affiliation1.Chinese Academy of Sciences; National Key Laboratory of Biochemical Engineering, Institute of Process Engineering
2.University of Chinese Academy of Sciences; School of Chemical Engineering
Recommended Citation
GB/T 7714
Weng,Caihong,Peng,Xiaowei,Han,Yejun. Depolymerization and conversion of lignin to value-added bioproducts by microbial and enzymatic catalysis[J]. Biotechnology for Biofuels,2021,14(1).
APA Weng,Caihong,Peng,Xiaowei,&Han,Yejun.(2021).Depolymerization and conversion of lignin to value-added bioproducts by microbial and enzymatic catalysis.Biotechnology for Biofuels,14(1).
MLA Weng,Caihong,et al."Depolymerization and conversion of lignin to value-added bioproducts by microbial and enzymatic catalysis".Biotechnology for Biofuels 14.1(2021).
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