信阳毛尖茶品质成分的初步研究.pdfVIP

食品科技 2009 年第34 卷第 12 期 FOOD SCIENCE AND TECHNOLOGY 食品开发 信阳毛尖茶品质成分的初步研究 1 1 2 1 郭桂义 ， 孙慕芳 ， 倪宝春 ， 陈 义 (1.信阳农业高等专科学校食品科学系，河南省高校信阳毛尖茶产业工程技术研究 中心，信阳464000 ；2.信阳五云茶叶集团有限公司，信阳464000 ) 摘要： 采用标准方法，对中国传统名茶信阳毛尖茶的主要品质成分进行了较系统的分析。结果 表明，信阳毛尖茶的茶多酚含量较高，为26.30%～30.67% ，儿茶素含量为15.34%～16.31%，氨基 酸含量2.55%～2.84% ，咖啡碱含量较高为4.21%～4.31% ，水浸出物含量42.62%～43.21% ；叶绿素 含量较低，仅为0.1337%～0.2206% 。首次报道了信阳毛尖茶的粗纤维含量和总灰分含量，粗纤维 含量为7.37%～7.79% ，总灰分含量4.79%～4.93% ，含量均较低，表明信阳毛尖茶原料嫩度较好。 关键词： 绿茶；信阳毛尖茶；化学成分 中图分类号： + 文献标志码： 文章编号： TS 272.5 1 A 1005-9989(2009)12-0141-03 Preliminary study on composition of xinyang Maojian tea 1 1 2 1 GUO Gui-yi , SUN Mu-fang , NI Bao-chun , CHEN Yi (1.Department of Food Science, Xinyang Agricultural College, Engineering Technology Research Center of Xinyang Maojian tea Industry, University of Henan Province, Xinyang 464000; 2.Xinyan Wuyun Tea Co., Ltd, Xinyang 464000) Abstract: Adopted standard ways, the main composition of Xinyang Maojian tea were analyzed systemLy. The results showed that the content of tea polyphenol was 26.30% ～30.67% , Catechin was 15.34% ～16.31% , Acid Amino was 2.55% ～2.84% , Caffeine was 4.21% ～4.31% , Water extract was 42.62% ～43.21% , and chlorophyll was only 0.1337%～0.2206% . Among them, tea polyphenols and Caffeine was higher. In this paper, the content of Crude fiber and total ash was studied frist, and Crude fiber was 7.37 % ～7.79% , total ash was 4.79%～4.93%, both lowly, and it indicated the tenderness of fresh