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Journal of Tea Science. 2010, (06) Core

Study on the Chemical Component of E8 Fraction from Pu-erh TeaChinese Full Text

LU Hai-peng,LIN Zhi ,ZHONG Qiu-sheng,WANG Li(Key Laboratory of Tea Chemical Engineering,Ministry of Agriculture,Engineering Research Center for Tea Processing,Tea Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou 310008,China)

Abstract: The chemical components of E8 fraction of ethyl acetate extract from Pu-erh tea was analyzed by HPLC preparative chromatography and its chemical structure was also identified by LC-MS and NMR.Results showed that five compounds were identified as follows:3’,4’,5-Trihydroxy-7-Methoxyflavone,3’,4’,5,7-Tetrahydroxyflavone（Luteolin） ,Quercetin-3-O-β-D-glucopyranoside,3’,4’,7-Trihydroxy-5-methoxyflavone-7-O-β-D-glucopyranoside and 3’,4’,7-Trihydroxy-5-Methoxyflavone.
Keywords：

Pu-erh tea; E8 fraction; chemical component;

  • DOI：

    10.13305/j.cnki.jts.2010.06.014

  • Series：

  • Subject：

  • Classification Code：

    R284

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