不同类型包装饮用水对绿茶茶汤品质的影响  

Effect of different types packaged drinking water on the green tea infusions

作　　者：刘巧灵 牛丽[1] 卫艺炜 李国萍 朱海燕[1] LIU Qiaoling;NIU Li;WEI Yiwei;LI Guoping;ZHU Haiyan(Key Laboratory of Education for Tea Science,National Research Center of Engineering Technology for Utilization of Botanical Function Ingredients,Hunan Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients,Horticulture College,Hunan Agricultural University,Changsha 410128,China)

机构地区：[1]湖南农业大学茶学教育部重点实验室,国家植物功能成分利用工程技术研究中心,湖南省植物功能成分利用协同创新中心,园艺学院,湖南长沙410128

出　　处：《食品与发酵工业》2021年第11期216-220,共5页Food and Fermentation Industries

基　　金：湘发改投资项目([2018]362号)。

摘　　要：水质对茶汤品质形成具有重要影响。选用纯净水、天然饮用水、矿物质水、矿泉水4种不同类型包装饮用水进行碣滩绿茶冲泡试验,通过对水样与茶汤的理化指标进行测定,对茶汤感官品质、汤色和滋味成分进行分析,研究不同类型水质对绿茶风味品质及化学成分的影响。结果表明,pH呈弱酸性且矿质元素含量少的纯净水适宜冲泡碣滩绿茶。茶经过冲泡后所含的微量元素种类丰富,有利于人体吸收。矿物质水冲泡碣滩绿茶茶汤亮度较好,但冲泡茶汤偏黄。滋味成分分析表明,纯净水和天然饮用水冲泡茶汤水浸出物、氨基酸、茶多酚含量高,但纯净水冲泡的绿茶儿茶素含量相对较高,结合感官审评,纯净水冲泡的茶汤浅黄绿亮,呈现“鲜、醇”的滋味,具有更好的感官特征。Water quality has an important influence on tea infusions.Four types of packaged drinking water,including pure water,natural drinking water,mineralized drinking water and spring water were used for the green tea brewing test.The effects of different types of water on the flavor and chemical composition of tea infusions were studied by physicochemical indexes,sensory evaluation and component analysis.Results showed that pure water with mildly acid and low content of metal elements was suitable for brewing green tea.Tea infusions were rich in trace elements and was beneficial to absorption.The tea brewed with mineralized drinking water had better brightness,but the color of tea soup was yellowish.Taste component analysis showed that green tea brewed with pure water and natural drinking water had high levels of water extracts,amino acids and tea polyphenols,the content of catechins in the tea brewed with pure water was relatively high,combined with sensory evaluation,tea brewed with pure water was light chartreuse and bright which showed a“fresh and mellow”taste.

关 键 词：包装饮用水 水质 绿茶 茶汤 

分 类 号：TS275.2[轻工技术与工程—农产品加工及贮藏工程]