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Link to original content: https://pubmed.ncbi.nlm.nih.gov/9028049/
Isolation and identification of alpha-glucosidase inhibitors from tochu-cha (Eucommia ulmoides) - PubMed Skip to main page content
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. 1997 Jan;61(1):177-8.
doi: 10.1271/bbb.61.177.

Isolation and identification of alpha-glucosidase inhibitors from tochu-cha (Eucommia ulmoides)

J Watanabe  1 , J Kawabata, H Kurihara, R Niki
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Isolation and identification of alpha-glucosidase inhibitors from tochu-cha (Eucommia ulmoides)

J Watanabe et al. Biosci Biotechnol Biochem. 1997 Jan.
Free article

Abstract

alpha-Glucosidase inhibitory activity was found in aqueous methanol extracts of tochu-cha, dried leaves of Eucommia ulmoides (Eucommiaceae). Five active principles against yeast enzyme were isolated and characterized. Among them, quercetin (1, Ki: 8.5 x 10(-6) M) was considered to contribute mostly to the activity of the tochu leaves. In regard to an animal alpha-glucosidase, rat intestinal sucrase activity was also inhibited by 1.

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