贵州黔陶乡古茶树茶品质研 究.pdfVIP

山地农业生物学报　 35(5):0070~0072,2016 Journal of Mountain Agriculture and Biology 贵州黔陶乡古茶树茶品质研究 1,2 1 1 1,2∗ 汪艳霞 ,李　 伟 ,钟明跃 ,尹　 杰 (1.贵州大学农学院,贵州 贵阳550025;2.贵州大学 茶叶工程与技术中心,贵州 贵阳550025) 摘　 要:本文以贵州省黔陶乡古茶树品种及相同栽培条件的福鼎大白茶品种成年茶树(12年生)秋茶为实验材 料,制作绿茶样,测定并分析其茶多酚、氨基酸、咖啡碱等主要品质成分,结合感官审评方法分析其品质特征。 结 果显示:古茶树茶主要品质成分含量分别为茶多酚占31.45±0.77%、氨基酸占2.98±0.05%、咖啡碱占3．40± 0．05%、水浸出物占45.34±0.06%,均高于成年茶树茶。 感官审评结果显示,古茶树茶综合评分高于成年茶树茶。 综合结果表明:古茶树茶主要品质成分和感官审评得分均高于成年茶树茶,表现出较好的品质。 关键词:古茶树;黔陶乡;品质 中图分类号:Q948　 　 　 文献标识码:A - - - 文章编号:1008 0457(2016)05 0070 03　 　 　 　 　 　 国际DOI编码:10．15958/ j．cnki．sdnyswxb．2016．05．012 The quality analysis of ancient tea tree grown in Qiantao town in Guizhou Province 1,2 1 1 1,2∗ - - WANG Yan xia ,LI Wei ,ZHONGMing yue ,YIN Jie (1. Agricultural College of Guizhou University,Guiyang,Guizhou 550025,China;2. Tea engineering and technology research center of Guizhou university,GuiYang,Guizhou 550025,China) Abstract:In this paper,green tea madefrom leaves of an ancient tea variety was comparedwith that made from autumn - leaves of the mature trees (12 year old) of another variety called Fuding dabai tea. The trees of Fuding dabai tea were planted in the same environment as the ancient tea plants. The components including tea polyphenols,amino acids and caffeine,together with sensory evaluation,were investigated and analyzed. The results showed that the ancient tea con- tained 31.45±0.77% of tea polyphenols,2.98±0.05% of amino acid,3.40±0.05% of caffeine,and 45.34±0.06% of a- queous extract;all are higher than those of Fuding dabai tea. The results of sensory evaluation showed that the compre-