天然产物研究与开发2017，Vol.29Issue(11)：1882-1887,6.DOI:10.16333/j.1001-6880.2017.11.012
茶叶品种及采摘时节对其活性成分的影响分析
Effect of Cultivated Varieties and Picking Time on Active Components of Teas
摘要
Abstract
This study focused on the analysis of total phenolics and antioxidative activities in speciality tea including YongXiHuoqing,TaQuanYunWu,JingTingLvXue and XiKouYunJian of Xuancheng city by Folin-Ciocalteu colorimetric method,DPPH and ABTS methods.Moreover,the difference of the total phenols and antioxidative activities for JingTingLvXue at different picking times were investigated and the effects of processing on tea polyphenols were discussed using HPLC-MS.The results showed that YongXiHuoQing contained much more tea polyphenols (161 mg catechin/g dry weight),XiKouYunJian just 127 mg catechin/g dry weight.YongXiHuoQing showed the highest antioxidant activity by ABTS and DPPH methods.Tea polyphenols content and antioxidant activities were increased when picked after Qingming festival.The content of tea polyphenols was increased and caffeine was decreased after tea producing process.关键词
宣城/绿茶/茶多酚/抗氧化活性/采收期Key words
Xuancheng/green tea/tea polyphenols/antioxidant activity/picking time分类
轻工纺织引用本文复制引用
冯国栋,张鸿,马意龙,张雨涵,赵康,商亚芳..茶叶品种及采摘时节对其活性成分的影响分析[J].天然产物研究与开发,2017,29(11):1882-1887,6.基金项目
中央高校基本科研业务费专项(JZ2016HGTA0680) （JZ2016HGTA0680）
合肥工业大学博士学位人员专项项目(JZ2014HGBZ0367) （JZ2014HGBZ0367）
