杭州白茶理化性质和生物活性研究  

Physicochemical properties and biological activities of Hangzhou white tea

作　　者：于昊男 黄海涛[2] 赵芸[2] 崔宏春[2] 程志强 何普明[1] YU Haonan;HUANG Haitao;ZHAO Yun;CUI Hongchun;CHENG Zhiqiang;HE Puming(Department of Tea Science,College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,China;Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,China)

机构地区：[1]浙江大学农业与生物技术学院茶学系,浙江杭州310058 [2]杭州市农业科学研究院,浙江杭州310024

出　　处：《茶叶》2024年第3期151-155,共5页Journal of Tea

基　　金：杭州市农业与社会发展重点项目(项目编号:20231203A04)。

摘　　要：杭州白茶是一种新兴的白茶品类,本文系统分析了杭州白茶的感官品质、理化性质和生物活性。结果表明,杭州白茶的水浸出物和茶多酚含量显著高于福鼎白茶(P<0.05),而游离氨基酸、可溶性糖含量较低。2023年产杭州白茶对DPPH自由基的清除率和对α-葡萄糖苷酶的抑制率均较佳。本研究结果可为杭州白茶生产标准和品牌化建设提供参考。Physicochemical properties and partial biological activities of Hangzhou white tea which was manufactured with fresh leaves from Hangzhou were studied.The sensory quality,physical and chemical properties and partial biological activities of Hangzhou white tea with different storage time were analyzed,with Fuding white tea as comparison.The results showed that the contents of water-soluble extract and tea polyphenols in Hangzhou white tea were significantly higher than those in Fuding white tea(P<0.05),but the contents of amino acid and soluble sugar were lower than the latter.The activities of scavenging free radical(DPPH)and inhibiting α-glucosidase of Hangzhou white tea manufactured in 2023 were better than those of Hangzhou white tea made in 2020.

关 键 词：杭州白茶 理化性质 抗氧化 茶叶功能成分 

分 类 号：Q946[生物学—植物学]