In this review,the porcine liver esterase(PLE) organic-inorganic hybrid nanoflowers(Ca3(PO4)2-PLE) were prepared in phosphate buffer by biomineralization strategy.The morphology and components of the prepared organic-inorganic hybrid nanoflowers were analyzed by scanning electron microscopy(SEM),energy dispersive spectrometry(EDS) and Fourier transform infrared spectroscopy(FT-IR).The parameters for the preparation of PLE hybrid nanoflowers were optimized.Results showed that the prepared PLE hybrid nanoflowers had the highest enzyme activity in phosphate buffer solution(pH 74) of 10 mmol/L,PLE concentration of 03 g/L and calcium ion concentration of 500 mmol/L at preparation temperature of 20 ℃,and its enzyme activity was 169% of the free enzyme in the same enzyme concentration.Furthermore,the PLE hybrid nanoflowers were used to study the enzymatic hydrolysis properties toward four pyrethroid pesticides.It was found that under the same conditions,the enzymatic hydrolysis rates of PLE hybrid nanoflowers were better than that of the free enzyme.In addition,the prepared PLE hybrid nanoflowers still remained over 70% of the enzymatic activity after twice uses of the pyrethroid pesticide enzymatic cycle.
Study on Efficient Hydrolysis of Pyrethroid Pesticide Using a Cross-linked “Nanoflower” Enzyme
Preparation and Application of a Molecularly Imprinted Fluorescence Sensor for Pyrethroid Pesticide Metabolite
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Shanghai Engineering Technology Research Center for Rapid Food Detection,School of Health Science and Engineering,University of Shanghai for Science and Technology