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茶叶科学 ›› 2010, Vol. 30 ›› Issue (6): 423-428.doi: 10.13305/j.cnki.jts.2010.06.003

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普洱茶E8组分的化学成分研究

吕海鹏, 林智*, 钟秋生, 王力   

  1. 中国农业科学院茶叶研究所农业部茶叶化学工程重点开放实验室,茶叶加工工程研究中心,浙江 杭州 310008
  • 收稿日期:2010-03-25 修回日期:2010-07-01 发布日期:2019-09-11
  • 通讯作者: linz@mail.tricaas.com
  • 作者简介:吕海鹏(1980— ),男,山东人,助理研究员,主要从事茶叶加工方面的研究。
  • 基金资助:
    国家自然科学基金(31000317),中央级公益性科研院所基本科研业务费专项(0032007017),云南省创新办科技计划课题(2007YNCXB-01-01)

Study on the Chemical Component of E8 Fraction from Pu-erh Tea

LU Hai-peng, LIN Zhi*, ZHONG Qiu-sheng, WANG Li   

  1. 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
  • Received:2010-03-25 Revised:2010-07-01 Published:2019-09-11

摘要: 采用HPLC制备色谱等分析了普洱茶乙酸乙酯提取物E8组分的化学成分,并通过LC/MS和NMR等对制备得到的化合物进行了结构鉴定。结果表明,从E8组分中分离鉴定出5个化合物,分别为3',4',5-三羟基-7-甲氧基黄酮、3',4',5,7-四羟基黄酮(木犀草素)、槲皮素-3-O-β-D-葡萄糖甙、3',4',7-三羟基-5-甲氧基黄酮-7-O-β-D-葡萄糖甙和3',4',7-三羟基-5-甲氧基黄酮。

关键词: 普洱茶, E8组分, 化学成分

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.

Key words: Pu-erh tea, E8fraction, chemical component

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