NEW MODIFIED COTTON FIBER APPLY TO SEPARATE ECG AND EGCG FROM TEA EXTRACT | Zendy

Thach Ngoc Tu | Zendy; Quan Pham | Zendy; Tong Thanh Danh | Zendy

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NEW MODIFIED COTTON FIBER APPLY TO SEPARATE ECG AND EGCG FROM TEA EXTRACT

Author(s) -

Thach Ngoc Tu,

Quan Pham,

Tong Thanh Danh

Publication year - 2010

Publication title -

science and technology development journal

Language(s) - English

Resource type - Journals

ISSN - 1859-0128

DOI - 10.32508/stdj.v13i3.2152

Subject(s) - citric acid , chemistry , reagent , fiber , gallate , epigallocatechin gallate , polyphenol , chromatography , food science , organic chemistry , nuclear chemistry , antioxidant

Developed the new technique to modify cotton fiber by esterification with citric acid, the reaction was carried out in the tight flask and applied argon as anti-burning reagent. The optimum condition was 170oC, 5h and 3g of citric acid per 2g of cotton fiber, which result was up to 0.88 mol citric acid grafted on 1 mol glucose. The modified cotton fiber thereafter was applied to purify epigallocatechin gallate (EGCG) and epicatechin gallate (ECG) from green tea polyphenol by column chromatography with the suitable mobile phase.

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