Journal
CHEMOSPHERE
Volume 244, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2019.125507
Keywords
Pyrethroids; Esterase; Catalysis mechanism; Biodegradation; Immobilization
Categories
Funding
- Key Realm R&D Program of Guangdong Province, China [2018B020206001]
- National Key Project for Basic Research, China [2015CB150600]
- National Natural Science Foundation of China, China [31401763]
- Guangdong Special Branch Plan for Young Talent with Scientific and Technological Innovation, China [2017TQ04N026]
- Science and Technology Planning Project of Guangdong Province, China [2017A010105008]
- Guangdong Natural Science Funds for Distinguished Young Scholar, China [2015A030306038]
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Agricultural and household applications of pyrethroid insecticides have significantly increased residual concentrations in living cells and environments. The enhanced concentration is toxic for living beings. Pyrethroid hydrolase enzyme (pyrethroid catalyzing esterase) regulates pyrethroid degradation, and has been well reported in various organisms (bacteria, fungi, insects and animals). Hydrolysis mechanisms of these esterases are different from others and properly function at factors viz., optimum temperature, pH and physicochemical environment. Active site of the enzyme contains common amino acids that play important role in pyrethroid catalysis. Immobilization technology emphasizes the development of better reusable efficiency of pyrethroid hydrolases to carry out large-scale applications for complete degradation of pyrethroids from the environments. In this review we have attempted to provide insights of pyrethroid-degrading esterases in different living systems along with complete mechanisms. (C) 2019 Elsevier Ltd. All rights reserved.
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