Microbial Genes for a Circular and Sustainable Bio-PET Economy

被引：94

作者：

Salvador, Manuel ^{[1
]}

Abdulmutalib, Umar ^{[1
]}

Gonzalez, Jaime ^{[1
]}

Kim, Juhyun ^{[1
]}

Smith, Alex A. ^{[1
]}

Faulon, Jean-Loup ^{[2
,3
,4
]}

Wei, Ren ^{[5
]}

Zimmermann, Wolfgang ^{[5
]}

Jimenez, Jose I. ^{[1
]}

机构：

[1] Univ Surrey, Fac Hlth & Med Sci, Guildford GU2 7XH, Surrey, England

[2] Univ Paris Saclay, INRA, Micalis Inst, AgroParisTech, F-78350 Jouy En Josas, France

[3] Univ Manchester, Manchester Inst Biotechnol, SYNBIOCHEM Ctr, Manchester M1 7DN, Lancs, England

[4] Univ Paris Saclay, Lab iSSB, CNRS, UMR8030, F-91000 Evry, France

[5] Univ Leipzig, Inst Biochem, Dept Microbiol & Bioproc Technol, D-04103 Leipzig, Germany

来源：

GENES | 2019年 / 10卷 / 05期

基金：

英国工程与自然科学研究理事会; 英国生物技术与生命科学研究理事会; 欧盟地平线“2020”;

关键词：

plastics; biodegradation; sustainability; upcycling; biotransformations; polyethylene terephthalate; terephthalate; ethylene glycol; ETHYLENE-GLYCOL METABOLISM; POLYETHYLENE TEREPHTHALATE; ESCHERICHIA-COLI; P-XYLENE; PSEUDOMONAS-PUTIDA; PLASTIC DEBRIS; GLYOXYLATE METABOLISM; ENZYMATIC-HYDROLYSIS; ACID PRODUCTION; PATHWAY;

D O I：

10.3390/genes10050373

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Plastics have become an important environmental concern due to their durability and resistance to degradation. Out of all plastic materials, polyesters such as polyethylene terephthalate (PET) are amenable to biological degradation due to the action of microbial polyester hydrolases. The hydrolysis products obtained from PET can thereby be used for the synthesis of novel PET as well as become a potential carbon source for microorganisms. In addition, microorganisms and biomass can be used for the synthesis of the constituent monomers of PET from renewable sources. The combination of both biodegradation and biosynthesis would enable a completely circular bio-PET economy beyond the conventional recycling processes. Circular strategies like this could contribute to significantly decreasing the environmental impact of our dependence on this polymer. Here we review the efforts made towards turning PET into a viable feedstock for microbial transformations. We highlight current bottlenecks in degradation of the polymer and metabolism of the monomers, and we showcase fully biological or semisynthetic processes leading to the synthesis of PET from sustainable substrates.

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