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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/108190

    Title: Porcine pancreatic α-amylase inhibitors from Euonymus laxiflorus Champ
    Authors: Nguyen, Van Bon;Nguyen, Anh Dzung;Nguyen, Quang Vinh;Wang, San-Lang
    Keywords: α-Amylase inhibitors;Diabetes;Obesity;Medicinal plants;Euonymus laxiflorus;Champ.;Dak Lak
    Date: 2017-01-01
    Issue Date: 2016-11-05 02:11:25 (UTC+8)
    Publisher: Springer Netherlands
    Abstract: Twenty-six samples of indigenous medicinal plants were collected in Dak Lak Province of Vietnam and evaluated for α-amylase inhibitory activity. Of these samples, trunk bark extract from Euonymus laxiflorus Champ. (ELC extract) showed the greatest α-amylase inhibitory activity with the smallest 50 % inhibitory concentration (IC50) of 6.6 ± 0.6 µg/mL against porcine pancreatic α-amylase. This extract possessed strong inhibitory activity against human saliva α-amylase and slightly lower activity against Bacillus subtilis α-amylase, with IC50 values of 4.2 ± 0.2 and 27.8 ± 1.8 µg/mL, respectively. ELC extract was found to be strongly thermostable, retaining 72–100 % relative activity even after heating at 100 °C for 5 min to 2 h. This extract was also stable at various pH values. These results suggest that ELC extract may be a good candidate for treatment of non-insulin-dependent diabetes mellitus (NIDDM) and obesity.
    Relation: Research on Chemical Intermediates 43(1), p.259–269
    DOI: 10.1007/s11164-016-2619-3
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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