基于氨基酸指纹图谱的扁形绿茶品种分析  

Study on the Identification of Flat Tea with Amino Acids

作　　者：赵明明[1] 金钰[1] 周有祥[1] ZHAO Ming-ming;JIN Yu;ZHOU You-xiang(Institute of Quality Standard and Testing Technology for Agro-Products,Hubei Academy of Agricultural Sciences,Wuhan 430064,China)

机构地区：[1]湖北省农业科学院农业质量标准与检测技术研究所,武汉430064

出　　处：《湖北农业科学》2018年第22期120-123,共4页Hubei Agricultural Sciences

基　　金：公益性行业(农业)科研专项(S201203046);湖北省农业科学院青年科学基金项目(2013NKYJJ20)

摘　　要：利用全自动氨基酸分析仪测定230份扁形茶叶样品中游离氨基酸的含量,并对其进行统计学分析。结果表明,通过对龙井群体、龙井43和乌牛早茶叶的判别得到2个函数,其中有6个变量,对训练集的判别正确率是64.3%,交叉验证的判别正确率是63.5%,仅能初步区分龙井43与乌牛早。The contents of free amino acids in 230 flat tea samples were measured by full-automatic amino acid analyzer and statistical analysis were performed.The results showed that two functions and six variables were obtained by discriminant analysis of Longjing Group,Longjing 43 and Wuyi Early Tea.The correct rate of discrimination for training set was 64.3%,and the correct rate of cross-validation was 63.5%.A preliminary distinction could be made between Longjing 43 and Wuniuzao.

关 键 词：扁形茶 游离氨基酸 主成分分析 判别分析 

分 类 号：S571.1[农业科学—茶叶生产加工] Q517[农业科学—作物学]