ISOLATION AND IDENTIFICATION OF ALPHA-GLUCOSIDASE INHIBITORS FROM TOCHU-CHA (EUCOMMIA ULMOIDES)

Authors
WATANABE J KAWABATA J KURIHARA H NIKI R
Citation
J. Watanabe et al., ISOLATION AND IDENTIFICATION OF ALPHA-GLUCOSIDASE INHIBITORS FROM TOCHU-CHA (EUCOMMIA ULMOIDES), Bioscience, biotechnology, and biochemistry, 61(1), 1997, pp. 177-178
Citations number
9
Categorie Soggetti
Biology,Agriculture,"Biothechnology & Applied Migrobiology","Food Science & Tenology
Journal title
Bioscience, biotechnology, and biochemistry → ACNP
ISSN journal
09168451
Volume
61
Issue
1
Year of publication
1997
Pages
177 - 178
Database
ISI
SICI code
0916-8451(1997)61:1<177:IAIOAI>2.0.ZU;2-#
Abstract
alpha-Glucosidase inhibitory activity was found in aqueous methanol ex tracts of tochu-cha, dried leaves of Eucommia ulmoides (Eutommiaceae). Five active principles against yeast enzyme were isolated and charact erized. Among them, quercetin (1, K-i: 8.5 x 10(-6) hi) was considered to contribute mostly to the activity of the tochu leaves. In regard t o an animal alpha-glucosidase, rat intestinal sucrase activity was als o inhibited by 1.