沱茶中叶绿素和类胡萝卜素组分的高效薄层色谱分析  

Analysis of Chlorophylls and Carotenoids in Tuo Cha by High Performance Thin-Layer Chromatoraphy

作　　者：徐仲溪[1] 王坤波[2] 简伯华 

机构地区：[1]湖南农业大学食品科学技术学院,湖南长沙410128 [2]湖南省天然产物工程技术研究中心 [3]湖南省怡清源茶叶有限公司,湖南长沙410110

出　　处：《云南农业大学学报》2005年第3期384-387,共4页Journal of Yunnan Agricultural University

基　　金：湖南省计委资助项目〔湘计科(1997)457号-16〕

摘　　要：采用高效薄层色谱法系统地分析了沱茶中的叶绿素及其降解产物、类胡萝卜素主要组分,并对主要组分进行了光谱扫描,就色素系统的内部比例与外形色泽的关系作了初步探讨。结果表明,(叶绿素b+叶绿酸酯b)/胡萝卜素和(叶绿素b+叶绿酸酯b)/(脱镁叶绿酸酯a+脱镁叶绿素a)能较合理地解释沱茶外形色泽形成的化学实质。The chlorophylls and their decomposed products & main constinents of carotenoids in Tuo Cha were determined by high performance thin-layer chromatoraphy(HPTLC). In-situ spectro of main constinents was recorded with TLC scanner. Moreover, the relationship between the constinent ratio of pigment system and the color quality was probed. Result showed that the appearance of color formation of Tuo Cha could be chemically described with the constinent ratio of (Chlb+Cdb) /Car and(Chlb+Cdb) / (Poa+Pya).

关 键 词：沱茶 色素物质 色泽品质 高效薄层色谱 

分 类 号：S571.1[农业科学—茶叶生产加工]