A novel long-chain acyl-derivative of epigallocatechin-3-O-gallate prepared and purified from green tea polyphenols

被引：2
作者：
Chen Ping
Tan Yao
Sun Dong
Zheng Xiao-ming
机构：
[1] Zhejiang University,Catalysis Institute
[2] Medical College of Wenzhou,undefined
来源：
Journal of Zhejiang University-SCIENCE A | 2003年 / 4卷 / 6期
关键词：
Green tea polyphenols; Lipophilic tea polyphenols; Epigallocatechin-3-; -gallate; Epigallocatechin-3-; -gallate-4′-; -hexadecanate; Isolation; High-speed countercurrent chromatography; A; O69; S571.1;
D O I：
10.1631/BF02851613
中图分类号：
学科分类号：
摘要：
Lipophilic tea polyphenols (LTP) were prepared by catalytic esterification of green tea polyphenols (GTP) with hexadecanoyl chloride. A novel long-chain acyl-derivative of epigallocatechin-3-o-gallate (EGCG) was first isolated from purification of LTP by high-speed countercurrent chromatography (HSCCC) using a solvent system composed of n-hexane-ethyl acetate-methanol-water (1∶1∶1∶1, v/v). The molecular structure of the acyl-derivative, Epigallocatechin-3-O-gallate-4′-O-hexadecanate, was elucidated by means of elemental analysis, IR,1H-NMR and MS spectra.
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页码：714 / 718
页数：4
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