Enzymatic degradation of plant biomass and synthetic polymers

被引:288
作者
Chen, Chun-Chi [1 ]
Dai, Longhai [1 ]
Ma, Lixin [1 ]
Guo, Rey-Ting [1 ]
机构
[1] Hubei Univ, State Key Lab Biocatalysis & Enzyme Engn, Hubei Collaborat Innovat Ctr Green Transformat Bi, Hubei Key Lab Ind Biotechnol,Sch Life Sci, Wuhan, Peoples R China
关键词
RUBBER OXYGENASE ROXA; SP STRAIN K30; BETA-ELIMINATION MECHANISM; GLYCOSIDE HYDROLASE FAMILY; CLEARING PROTEIN LCP; MICROBIAL-DEGRADATION; CRYSTAL-STRUCTURE; NATURAL-RUBBER; PECTIN LYASE; POLYESTER POLYURETHANE;
D O I
10.1038/s41570-020-0163-6
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Plant biomass is an abundant renewable resource on Earth. Microorganisms harvest energy from plant material by means of complex enzymatic systems that efficiently degrade natural polymers. Intriguingly, microorganisms have evolved to exploit these ancient mechanisms to also decompose synthetic plastic polymers. In this Review, we summarize the mechanisms by which they decompose non-starch plant biomass and the six major types of synthetic plastics. We focus on the structural features of the enzymes that contribute to substrate recognition and then describe the catalytic mechanisms of polymer metabolism. An understanding of these natural biocatalysts is valuable if we are to exploit their potential for the degradation of synthetic polymers.
引用
收藏
页码:114 / 126
页数:13
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