期刊
SCIENTIFIC WORLD JOURNAL
卷 -, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2014/654193
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- Presidium of the Siberian Division of the Russian Academy of Science under the Program New Medical Technology Centers
An ethanolic extract and its ethyl acetate-soluble fraction from leaves of Calendula officinalis L. (Asteraceae) were found to show an inhibitory effect on amylase. From the crude extract fractions, one new phenolic acid glucoside, 6'-O-vanilloyl-beta-D-glucopyranose, was isolated, together with twenty-four known compounds including five phenolic acid glucosides, five phenylpropanoids, five coumarins, and nine flavonoids. Their structures were elucidated based on chemical and spectral data. The main components, isoquercitrin, isorhamnetin-3-O-beta-D-glucopyranoside, 3,5-di-O-caffeoylquinic acid, and quercetin-3-O-(6 ''-acetyl)-beta-D-glucopyranoside, exhibited potent inhibitory effects on amylase.
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