Isolation and identification of (—)-gallocatechin gallate and circular dichroism of green tea flavanols

Autor:	O. Korver, D.J. Frost, J. de Bruijn, C. K. Wilkins, K. Weinges
Rok vydání:	1971
Předmět:	Circular dichroism Nutrition and Dietetics Chromatography Stereochemistry food and beverages Ether Gallate Green tea Mass spectrometry complex mixtures chemistry.chemical_compound Column chromatography chemistry Sephadex Gallocatechin gallate Agronomy and Crop Science Food Science Biotechnology
Zdroj:	Journal of the Science of Food and Agriculture. 22:480-484
ISSN:	1097-0010 0022-5142
Popis:	Partly raceme (—)-gallocatechin gallate was isolated from green tea by counter-current distributins and column chromatography on Sephadex LH-20. The structure was proven by mass spectroscopy of the pertrimethylsilyl ether and by n.m.r. and circular dichroism (c.d.). The compound is probably an artifact produced by heating (—)-epigallocatechin gallate. Circular dichroism curves of several tea flavanols are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::42c630810820da4ed5e7e49e911f36b6 https://doi.org/10.1002/jsfa.2740220913 Zobrazit plný text záznamu Plný text