信阳毛尖茶品质成分的初步研究

Preliminary study on composition of xinyang Maojian tea

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。

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 leaves was better.