New possibility for PET plastic recycling by a tailored hydrolytic enzyme  

作　　者：Shijie Yu Qinghai Li Yanguo Zhang Hui Zhou 

机构地区：[1]Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Beijing Key Laboratory of CO_(2)Utilization and Reduction Technology,Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Green Energy & Environment》2024年第2期163-165,共3页绿色能源与环境（英文版）

基　　金：support from the Beijing Municipal Natural Science Foundation(2222012);the National Natural Science Foundation of China(Grant No.52070116);the Key-Area Research and Development Program of Guangdong Province(2020B1111380001);the Tsinghua University-Shanxi Clean Energy Research Institute Innovation Project Seed Fund is gratefully acknowledged.

摘　　要：Plastic waste puts a huge burden on the ecosystem due to the current lack of mature recycling technology.Poly(ethylene terephthalate)(PET)is one of the most produced plastics in the world.Enzymatic decomposition holds the promise of recovering monomers from PET plastic,and the monomers can be used to regenerate new PET products.However,there are still limitations in the activity and thermal stability of the existing PET hydrolases.The recent study by Lu et al.introduced a novel PET hydrolase via machine learning-aided engineering.The obtained PET hydrolase showed excellent activity and thermal stability in the hydrolysis of PET and is capable of directly degrading large amounts of postconsumer PET products.This approach provides an effective method for recycling PET waste and is expected to improve the current state of plastic pollution worldwide.

关 键 词：Plastic waste Poly(ethylene terephthalate) HYDROLYSIS Machine learning Enzymatic depolymerization HYDROLASES 

分 类 号：TQ426.97[化学工程] X705[环境科学与工程—环境工程]