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Antioxidant and α-glucosidase inhibitiory active compounds of Cercis chinensis flowers were investigated with bio-assay guiding method. Ethyl acetate fraction (CLEa) and n-butanol fraction (CLBu) exhibited antioxidant and α-glucosidase inhibitiory activity in vitro, and the corresponding active fractions, EaFr.3, EaFr.5 and BuFr.1, exhibited higher antioxidant and α-glucosidase inhibitiory activity than those of other fractions. Eight compounds, ethyl gallate (1), stearic acid (2), docosanoic acid (3), 5α-stigmast-9(11)-en-3β-ol (4), kaempferol-3-O-α-rhamnopyranoside (5), vanillic acid (6), fisetin (7), and β-sitosterol (8), were isolated and identified from CLEa and CLBu. Ethyl gallate shown the highest antioxidant activity by scavenging DPPH radical and reducing ferric compared. Docosanoic acid and vanillic acid shown stronger α-glucosidase inhibitory activity than that of acarbose.


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Antioxidant and α-glucosidase inhibitiory activity of Cercis chinensis flowers

Show Author's information Juanjuan Zhanga,d,1Li Zhoua,b,c,1Lili Cuia,b,cZhenhua Liua,cJinfeng Weia,b,c,e( )Wenyi Kanga,b,c( )
National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, 475004, China
Kaifeng Key Laboratory of Functional Components in Health Food, Kaifeng, 475004, China
Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng, 475004, China
Zhengzhou City Key Laboratory of Medicinal Resources Research, Huanghe Science and Technology College, Zhengzhou, 450063, China
Minsheng College, Henan University, Kaifeng, Henan, 475004, China

1 These authors contributed equally to this work. Peer review under responsibility of KeAi Communications Co., Ltd.]]>

Abstract

Antioxidant and α-glucosidase inhibitiory active compounds of Cercis chinensis flowers were investigated with bio-assay guiding method. Ethyl acetate fraction (CLEa) and n-butanol fraction (CLBu) exhibited antioxidant and α-glucosidase inhibitiory activity in vitro, and the corresponding active fractions, EaFr.3, EaFr.5 and BuFr.1, exhibited higher antioxidant and α-glucosidase inhibitiory activity than those of other fractions. Eight compounds, ethyl gallate (1), stearic acid (2), docosanoic acid (3), 5α-stigmast-9(11)-en-3β-ol (4), kaempferol-3-O-α-rhamnopyranoside (5), vanillic acid (6), fisetin (7), and β-sitosterol (8), were isolated and identified from CLEa and CLBu. Ethyl gallate shown the highest antioxidant activity by scavenging DPPH radical and reducing ferric compared. Docosanoic acid and vanillic acid shown stronger α-glucosidase inhibitory activity than that of acarbose.

Keywords: α-glucosidase, Antioxidative activity, Cercis chinensis bunge, Chemical component

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Publication history
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Acknowledgements

Publication history

Received: 17 December 2019
Revised: 16 January 2020
Accepted: 03 April 2020
Published: 23 April 2020
Issue date: December 2020

Copyright

© 2020 Beijing Academy of Food Sciences. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.

Acknowledgements

Acknowledgements

This work was supported by Key Project in Science and Technology Agency of Henan Province (192102110112, 192102110214 and 182102410083); Innovation Training Program for College Students (201910475107 and MSCXSY2019036).

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