Isolation and identification of (—)-gallocatechin gallate and circular dichroism of green tea flavanols
✍ Scribed by C. K. Wilkins; J. de Bruijn; O. Korver; D. J. Frost; K. Weinges
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 406 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-5142
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The Ñavanol composition and ca †eine content of green tea leaf, black tea quality parameters of theaÑavins, thearubigins, liquor brightness and total colour varied more among clones than with time of the year. In green leaf, either ([)epicatechin gallate or ([)epigallocatechin gallate was the domina
## Abstract Crude catechins extract from Chinese green tea were fractionated using Sephadex LH‐20 column chromatography. The fraction containing (–)‐epigallocatechin‐3‐gallate (EGCG) was then subjected to a semipreparative high‐performance liquid chromatography (HPLC). Using a mobile phase of water