生物降解
聚对苯二甲酸乙二醇酯
对苯二甲酸
降级(电信)
材料科学
酶
聚酯纤维
生化工程
化学
有机化学
计算机科学
复合材料
电信
工程类
作者
Jiarong Qiu,Yuxin Chen,Liangqing Zhang,Jinzhi Wu,Xianhai Zeng,Xinguo Shi,Lemian Liu,Jianfeng Chen
标识
DOI:10.1016/j.envres.2023.117427
摘要
Polyethylene terephthalate (PET) is a polymer synthesized via the dehydration and condensation reaction between ethylene glycol and terephthalic acid. PET has emerged as one of the most extensively employed plastic materials due to its exceptional plasticity and durability. Nevertheless, PET has a complex structure and is extremely difficult to degrade in nature, causing severe pollution to the global ecological environment and posing a threat to human health. Currently, the methods for PET processing mainly include physical, chemical, and biological methods. Biological enzyme degradation is considered the most promising PET degradation method. In recent years, an increasing number of enzymes that can degrade PET have been identified, and they primarily target the ester bond of PET. This review comprehensively introduced the latest research progress in PET enzymatic degradation from the aspects of PET-degrading enzymes, PET biodegradation pathways, the catalytic mechanism of PET-degrading enzymes, and biotechnological strategies for enhancing PET-degrading enzymes. On this basis, the current challenges within the enzymatic PET degradation process were summarized, and the directions that need to be worked on in the future were pointed out. This review provides a reference and basis for the subsequent effective research on PET biodegradation.
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