欢迎访问《茶叶科学》,今天是

茶叶科学 ›› 2012, Vol. 32 ›› Issue (6): 480-484.doi: 10.13305/j.cnki.jts.2012.06.010

• • 上一篇    下一篇

贵州绿茶中咖啡碱和儿茶素含量分析

李俊, 郭晓关, 庞宏宇, 朱福建, 王震, 赖飞*   

  1. 贵州省农产品质量安全监督检验测试中心 贵州省茶叶产品质量监督检验站,贵州 贵阳 550004
  • 收稿日期:2012-06-11 修回日期:2012-09-05 出版日期:2012-12-15 发布日期:2019-09-05
  • 通讯作者: nf_nf@126.com
  • 作者简介:李俊(1982— ),男,贵州瓮安人,硕士,主要从事食品安全及仪器分析工作。

Contents of Caffeine and Catechin in Guizhou Green Tea

LI Jun, GUO Xiao-guan, PANG Hong-yu, ZHU Fu-jian, WANG Zhen, LAI Fei*   

  1. Supervision and Testing Center for Quality and Safety of Agri-produce in Guizhou Province; Supervision and Inspection Station for Tea Quality of Guizhou Province, Guiyang 550004, China
  • Received:2012-06-11 Revised:2012-09-05 Online:2012-12-15 Published:2019-09-05

摘要: 对贵州省243份绿茶样品中咖啡碱和儿茶素类物质采用高效液相色谱方法进行检测。结果表明:贵州省绿茶中儿茶素含量范围为9.14%~27.28%,平均含量15.71%;咖啡碱含量为1.08%~3.33%,平均含量2.24%。各地区茶叶儿茶素品质指数多数为1000~2000,其中黔南地区的最高为1975.51;各地区的儿茶素苦涩味指数主要在8.00~17.04之间,黔西南地区的苦涩味指数最低为8.00。据此分析可得,贵州绿茶具有很高的利用价值,春茶适合开发高品质的名优茶,秋茶适合用于茶叶深加工或有效成分的提取。

关键词: 贵州绿茶, 有效成分, 儿茶素, 咖啡碱

Abstract: Contents of caffeine and catechin of 243 green tea samples from Guizhou province are detected, using high performance liquid chromatographic (HPLC). The results show that, the catechin contents range 9.14%~27.28% in green tea of Guizhou province, the average content is 15.71%. The caffeine contents range 1.08%~3.33%, the average content is 2.24%. The catechin quality indexes of samples from 9 regions mainly are 1000~2000, and the highest one (the sample is from Qiannan) is 1975.51. The catechin bitter taste index of samples from 9 regions mainly are 8.00~17.04.According to the results, there is high value for making use of effective components of Guizhou green tea, and developing high quality spring tea is strongly recommended, and relatively the autumn tea is suitable for deep processing or extracting active principles.

Key words: Guizhou green tea, active principle, catechin, caffeine

中图分类号: