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Titolo:
CONTENTS OF GYMNEMIC ACID IN HEALTH FOODS USING GYMNEMA-SYLVESTRE
Autore:
NAKAMURA Y; TSUMURA Y; TONOGAI Y; SHIBATA T;
Indirizzi:
NATL INST HLTH SCI,OSAKA BRANCH,CHUO KU,1-1-43 HOENZAKA OSAKA 540 JAPAN
Titolo Testata:
Shokuhin Eiseigaku Zasshi
fascicolo: 3, volume: 38, anno: 1997,
pagine: 178 - 184
SICI:
0015-6426(1997)38:3<178:COGAIH>2.0.ZU;2-4
Fonte:
ISI
Lingua:
JPN
Keywords:
GYMNEMA SYLVESTRE; HEALTH FOODS; GYMNEMIC ACID; GYMNEMAGENIN; ODS CARTRIDGE; HPLC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
4
Recensione:
Indirizzi per estratti:
Citazione:
Y. Nakamura et al., "CONTENTS OF GYMNEMIC ACID IN HEALTH FOODS USING GYMNEMA-SYLVESTRE", Shokuhin Eiseigaku Zasshi, 38(3), 1997, pp. 178-184

Abstract

Contents of gymnemic acids were investigated in 21 kinds of commercial health foods using Gymnema sylvestre leaves or extract. A hot water extract of each sample was acidified and centrifuged. The obtained precipitate was dissolved with ethanol and hydrolyzed with alkali followed by acid to hydrolyze gymnemic acid to gymnemagenin. The hydrolyzate was purified on an ODS cartridge, and gymnemagenin was measured by HPLC. The content of gymnemic acid was calculated as gymnemic acid II. Contents of gymnemic acid were N.D. (less than 10.5 mu g/g) to 20.5 mg/gfor 11 kinds of tablets, 8.46 mg/g for 1 kind of powdered leaves, 2.12 similar to 6.89 mg/g for 5 kinds of tea bags of ''gymnema tea'', N.D. (less than 0.207 mu g/mL) to 4.41 mu g/mL for 2 kinds of soft drinks, and 0.029 similar to 0.055 mg/g for 2 kinds of chewing gum.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 09:40:11