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Lipophilic tea polyphenols(LTP)was pripared by esterificationof green tea polyphenols(GTP)with hexadecanoyl chloride.Anovel long-chain acyl catechin was isolated and purified fromLTP by high-speed countercurrent chromatography(HSCCC).Its molecular structure was elucidated as epigallocatechin-3-O-gallate-4′-O-hexadecanate by elemental analysis,IR,MS and~1H NMR spectra.
Lipophilic tea polyphenols (LTP) was pripared by esterificationof green tea polyphenols (GTP) with hexadecanoyl chloride. Novel long-chain acyl catechin was isolated and purified from LTP by high-speed countercurrent chromatography (HSCCC) .Its molecular structure was elucidated as epigallocatechin-3 -O-gallate-4’-O-hexadecanate by elemental analysis, IR, MS and ~ 1H NMR spectra.