Welcome to Journal of Tea Science,Today is

Journal of Tea Science ›› 2008, Vol. 28 ›› Issue (4): 277-281.doi: 10.13305/j.cnki.jts.2008.04.003

Previous Articles     Next Articles

Separation, Purification and Structure Identification of Flavonol Glycosides in Black Tea

GAO Qing-qing1,2, JIANG He-yuan1,*, ZHANG Jian-yong1, YUAN Xin-yue1,2, KOU Xiao-hong1, GAO Qi1, LIU Xiao-hui1,2, KE Chang-qiang3   

  1. 1. Key Laboratory of Tea Chemical Engineering, the Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    2. Chinese Academy of Agriculture and Science, Beijing 100081, China;
    3. Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
  • Received:2008-02-29 Online:2008-08-15 Published:2019-09-12

Abstract: Column chromatography, HPLC and prepared HPLC were used together to separate and purify the ethyl acetate extract of Dajielee black tea, and the mixture of two flavonol glycosides was obtained. The molecule NMR methods weights and structure of these two flavonol glycosides were identified by using the HPLC/MS and NMR methods.

Key words: black tea, Flavonol glycosides, HPLC, LC/MS, NMR

CLC Number: