英红九号六大茶类生化成分分析及体外活性评价  

Analysis of Biochemical Components and Evaluation of the in vitro Activity of Six Categories of Tea Made of Yinghong NO.9

作　　者：孙世利[1] 郭芸彤 陈海强[1] 刘晨 赖幸菲[1] 曹藩荣[2] SUN Shi-li;GUO Yun-tong;CHEN Hai-qiang;LIU Chen;LAI Xing-fei;CAO Fan-rong(Tea Research Institute,Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization,Guangzhou 510640,Guangdong,China;College of Horticulture,South China Agricultural University,Guangzhou 510642,Guangdong,China)

机构地区：[1]广东省农业科学院茶叶研究所/广东省茶树资源创新利用重点实验室,广东广州510640 [2]华南农业大学园艺学院,广东广州510642

出　　处：《食品研究与开发》2018年第9期159-165,共7页Food Research and Development

基　　金：广东省省级科技计划项目(2017A070702004;2016B090918118;2015B090906027;2014A070713012);2017年度广东省科技发展专项资金(2017A020224015);清远市科技计划项目(2016A005);广东省科技计划项目"广东大叶种红茶产业技术创新平台建设"(粤科规财字[2014]208号);2017年省级现代农业科技创新联盟建设(广东省现代农业产业技术体系创新团队)项目(2017LM2151)

摘　　要：对英红九号茶树品种六大茶类(绿茶、白茶、黄茶、乌龙茶、红茶和黑茶)的生化成分含量进行分析,并进行体外活性评价。结果表明:英红九号六大茶类中生化成分特点是绿茶的可溶性糖和水浸出含量最高,白茶的各生化成分含量均处于其他茶类之间,黄茶的茶多酚和儿茶素含量最高,乌龙茶的氨基酸含量最高,黄酮和可溶性糖含量最低,红茶的黄酮含量最高,茶多酚、儿茶素、氨基酸和水浸出物的含量最低,黑茶的氨基酸和水浸出物含量较高,茶多酚和儿茶素含量较低,仅稍高于红茶。英红九号六大茶类的体外抗氧化活性表现为绿茶、乌龙茶和黄茶的活性较高,体外抑制α-淀粉酶活性表现为绿茶和乌龙茶的活性较高,体外抑制脂肪酶活性表现为黑茶活性最高,其他茶类活性相差不大。The biochemical components and the activities in vitro of six categories of tea(green tea,withe tea,yellow tea,oolong tea and black tea)made of Yinghong NO.9 were determined.The results showed that the content of soluble sugar and water extract of green tea were the highest.The content of all the chemical components of white tea were between the other kinds of tea.The content of tea polyphenols and catechins of yellow tea were the highest.The content of amino acid of oolong tea were the highest.However,the content of soluble sugar and flavonoid of oolong tea were the lowest.The content of flavonoid of black tea were the highest,while the content of tea polyphenols,catechins,amino acid and water extract were the lowest.The content of amino acid and water extract of dark tea were higher than black tea,while the content of tea polyphenols and catechins were lower than black tea.The antioxidant ability of green tea,oolong tea and yellow tea were stronger than other kinds of tea.The inhibitive activities ofα-amylase of green tea and oolong tea were stronger than other kinds of tea.The inhibitive activities of lipase of dark tea was strongest.There was no significant difference in the inhibitive activities of lipase of other kinds of tea.

关 键 词：英红九号 六大茶类 生化成分 抗氧化 降血糖 减肥 

分 类 号：TS272.7[农业科学—茶叶生产加工]