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Abstract Title:

Antioxidant and-Glucosidase Inhibitory Activities Guided Isolation and Identification of Components from Mango Seed Kernel.

Abstract Source:

Oxid Med Cell Longev. 2020 ;2020:8858578. Epub 2020 Dec 28. PMID: 33456677

Abstract Author(s):

Dan Yang, Xuee Chen, Xida Liu, Na Han, Zhihui Liu, Sikai Li, Jianxiu Zhai, Jun Yin

Article Affiliation:

Dan Yang

Abstract:

In the present study, petroleum ether, dichloromethane, ethyl acetate, and-butanol fractions of mango seed kernel exhibited different degrees of antioxidant and-glucosidase inhibitory activity. Thus, quantitative and qualitative analysis of the petroleum ether fraction was conducted by GC-MS. Among identified components, four unsaturated fatty acids had never been reported in natural products before, together with 19 known components. In addition, 17 compounds were isolated and elucidated from other active fractions. Compounds,,, andwere isolated for the first time fromgenus. Compoundsandexhibited prominent DPPH radical scavenging and-glucosidase inhibitory effects. In order to further explore their mechanism of-glucosidase inhibition, their enzyme kinetics and in silico modeling experiments were performed. The results indicated thatinhibited-glucosidase in a noncompetitive manner, whereasacted in a competitive manner. In molecular docking, the stability of binding was enhanced by-T-shaped,-alkyl,-stacked, hydrogen bond, and electrostatic interactions. Thus, compoundsandwere determined to be new potent antioxidant and-glucosidase inhibitors for preventing food oxidation and enhancing hypoglycemic activity.

Study Type : In Vitro Study

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