期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 48, 期 8, 页码 3425-3430出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf0000833
关键词
green tea; black tea; Camellia sinensis; high-speed countercurrent chromatography; HPLC-ESI-MS; polyphenols; catechins; flavonol glycosides; proanthocyanidins; strictinin
High-speed countercurrent chromatography (HSCCC) was applied to the separation of polyphenols from tea leaves (Camellia sinensis L.). The capability of HSCCC to isolate pure tea polyphenols from complex mixtures on a preparative scale was demonstrated for catechins, flavonol glycosides, proanthocyanidins, and strictinin from green and black tea. The purity and identity of isolated compounds was confirmed by H-1 NMR and HPLC-ESI-MS/MS. Gram quantities of polyphenols from tea can be isolated with the procedure described.
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