摘要
为服务于南岳云雾茶的开发利用,本研究以南岳云雾茶为试验材料,利用酒石酸亚铁法测定茶多酚的含量,研究料液比和浸提时间对南岳云雾茶茶多酚浸提率的影响,优化南岳云雾茶茶多酚提取工艺,并确定南岳云雾茶茶多酚的含量水平。结果表明:料液比1∶60、浸提时间10 min,南岳云雾茶的茶多酚提取率最高,达到20.71%。该方法操作简便,快速安全,重复性与稳定性好,可作为快速测定南岳云雾茶中茶多酚的一种方法。
In order to serve the development and utilization of Nanyue Yunwu tea,the experiment was conducted with Nanyue Yunwu tea as material,the content of tea polyphenols was determined by ferrous tartrate method,the effects of the material-to-liquid ratio and extraction time on the extraction rate of tea polyphenols from Nanyue Yunwu tea were studied,to optimize the extraction process of polyphenols from Nanyue Yunwu tea.The results showed that the optimum extraction conditions of tea polyphenols from Nanyue Yunwu tea were as follows:the ratio of material-to-liquid was 1∶60 and the extraction time was 10 min.Under the optimum conditions,the extraction rate of tea polyphenols from NanyueYunwu tea was 20.71%.The above method is simple,rapid,safe,repeatable and stable,which could be used as a rapid method for the determination of tea polyphenols in Nanyue Yunwu tea in future.
作者
唐艺盟
李彦
唐芝
吴林丽
黄慧珍
江伟民
TANG Yimeng;LI Yan;TANG Zhi;WU Linli;HUANG Huizhen;JIANG Weimin(Hunan Key Laboratory for Conservation and Utilization of Biological Resources in the Nanyue Mountainous Region,Hengyang Normal University,Hengyang,Hunan 421008,China)
出处
《天津农业科学》
CAS
2021年第11期4-6,共3页
Tianjin Agricultural Sciences
基金
南岳山区生物资源保护与利用湖南省重点实验室开放基金资助项目(NY20K04)
湖南省自然科学基金项目(2018JJ3008)
国家自然科学基金项目(31800169)。
关键词
南岳云雾茶
茶多酚
水浴浸提法
工艺优化
Nanyue Yunwu tea
tea polyphenols
water bath extraction
process optimization
