Isolation and Identification ofα-Glucosidase Inhibitors from Tochu-cha (Eucommia ulmoides)
Authors:
- Jun KawabataJKJun Kawabata
- Hideyuki KuriharaHKHideyuki Kurihara
- Ryoya NikiRNRyoya Niki
- 1 January 1997
- journal article
- Published by Oxford University Press (OUP) in Bioscience, Biotechnology, and Biochemistry
- Vol. 61 (1) , 177-178
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.Keywords
This publication has 1 reference indexed in Scilit:
- Flavonoids1989