对苯二甲酸
细菌
生物降解
乙二醇
乙烯
单体
聚乙烯
化学
聚对苯二甲酸乙二醇酯
聚酯纤维
催化作用
材料科学
生物
聚合物
有机化学
复合材料
遗传学
作者
Shosuke Yoshida,Kazumi Hiraga,Toshihiko Takehana,Ikuo Taniguchi,Hironao Yamaji,Yasuhito Maeda,Kiyotsuna Toyohara,Kenji Miyamoto,Yoshiharu Kimura,Kôhei Oda
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2016-03-11
卷期号:351 (6278): 1196-1199
被引量:1864
标识
DOI:10.1126/science.aad6359
摘要
Poly(ethylene terephthalate) (PET) is used extensively worldwide in plastic products, and its accumulation in the environment has become a global concern. Because the ability to enzymatically degrade PET has been thought to be limited to a few fungal species, biodegradation is not yet a viable remediation or recycling strategy. By screening natural microbial communities exposed to PET in the environment, we isolated a novel bacterium, Ideonella sakaiensis 201-F6, that is able to use PET as its major energy and carbon source. When grown on PET, this strain produces two enzymes capable of hydrolyzing PET and the reaction intermediate, mono(2-hydroxyethyl) terephthalic acid. Both enzymes are required to enzymatically convert PET efficiently into its two environmentally benign monomers, terephthalic acid and ethylene glycol.
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