海拔对信阳毛尖茶生化成分的影响  

Effects of Altitude on Biochemical Components of Xinyang Maojian Tea

作　　者：陈凌芝 孔亚帅 张向娜 王晶晶 赵冰心 孙慕芳 王晓 尹鹏 郭桂义 CHEN Lingzhi;KONG Yashuai;ZHANG Xiangna;WANG Jingjing;ZHAO Bingxin;SUN Mufang;WAGN Xiao;YIN Peng;GUO Guiyi(Henan Key Laboratory of Tea Plant Comprehensive Utilization in South Henan,College of Tea Science,Xinyang Agriculture and Forestry University,Xinyang 464000,Henan,China;Xinyang Wenxin Tea Co.,Ltd.,Xinyang 464000,Henan,China;Key Laboratory of Tea Science of Education of Ministry,Hunan Agricultural University,Changsha 410128,Hunan,China)

机构地区：[1]信阳农林学院茶学院、河南省豫南茶树资源综合开发重点实验室,河南信阳464000 [2]信阳市文新茶叶有限责任公司,河南信阳464000 [3]湖南农业大学茶学教育部重点实验室,湖南长沙410128

出　　处：《食品研究与开发》2024年第15期53-58,共6页Food Research and Development

基　　金：河南省科技攻关项目(212102110115);信阳市科技攻关项目(20230031);国家重点研发计划项目(2021YFD1601103);信阳农林学院茶学科技创新团队项目(XNKJTD-003);信阳农林学院青年教师科研基金项目(QN2022008、QN2022010、QN2022011)。

摘　　要：为探究信阳毛尖茶生化成分与海拔的关系,该研究以不同海拔的信阳毛尖茶为对象,测定茶样的主要生化成分含量,并结合多元统计分析,明确不同海拔信阳毛尖茶的生化成分差异。结果表明,低海拔茶样中游离氨基酸、没食子酸、儿茶素、表儿茶素、表儿茶素没食子酸酯和非酯型儿茶素含量更高,咖啡碱、黄酮类物质、表没食子儿茶素、表没食子儿茶素没食子酸酯、酯型儿茶素和儿茶素总量在高海拔茶样中含量更高;多元统计分析表明,信阳毛尖茶可根据海拔进行区分,儿茶素、表没食子儿茶素没食子酸酯、非酯型儿茶素和酯型儿茶素是区分不同海拔信阳毛尖茶的关键差异性成分。This study aimed to explore the relationship between the biochemical components and the altitude of Xinyang Maojian tea.The main biochemical components of Xinyang Maojian tea at different altitudes were determined,and the differences in these components were clarified by multivariate statistical analysis.The results showed that free amino acids,gallic acid,catechins,epicatechin,epicatechin gallate,and non-ester catechins were higher in the low-altitude tea samples.In contrast,caffeine,flavonoids,epicatechin,epicatechin gallate,ester catechins,and total catechins were higher in the high-altitude tea samples.The multivariate statistical analysis showed that Xinyang Maojian tea could be distinguished based on altitude.Catechin,epigallocatechin gallate,non-ester catechin,and ester catechin were identified as key differential biochemical compounds for distinguishing Xinyang Maojian tea at different altitudes.

关 键 词：信阳毛尖茶 海拔 生化成分 正交矫正偏最小二乘法判别分析 差异 

分 类 号：S571.1[农业科学—茶叶生产加工] TS272.5[农业科学—作物学]