Inhibitory Properties of Aqueous Ethanol Extracts of Propolis on Alpha-Glucosidase

文献类型: 外文期刊

第一作者: Zhang, Hongcheng

作者: Zhang, Hongcheng;Wang, Guangxin;Dong, Jie;Zhang, Hongcheng;Dong, Jie;Beta, Trust

作者机构:

期刊名称:EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE ( 影响因子:2.629; 五年影响因子:2.845 )

ISSN: 1741-427X

年卷期: 2015 年

页码:

收录情况: SCI

摘要: The objective of the present study was to evaluate the inhibitory properties of various extracts of propolis on alpha-glucosidase from baker's yeast and mammalian intestine. Inhibitory activities of aqueous ethanol extracts of propolis were determined by using 4-nitrophenyl-D-glucopyranoside, sucrose and maltose as substrates, and acarbose as a positive reference. All extracts were significantly effective in inhibiting alpha-glucosidase from baker's yeast and rat intestinal sucrase in comparison with acarbose (P < 0.05). The 75% ethanol extracts of propolis (75% EEP) showed the highest inhibitory effect on alpha-glucosidase and sucrase and were a noncompetitive inhibition mode. 50% EEP, 95%, EEP and 100% EEP exhibited a mixed inhibition mode, while water extracts of propolis (WEP) and 25% EEP demonstrated a competitive inhibition mode. Furthermore, WEP presented the highest inhibitory activity against maltase. These results suggest that aqueous ethanol extracts of propolis may be used as nutraceuticals for the regulation of postprandial hyperglycemia.

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