摘要
选取合肥市、都匀市、雷山县3个地区的绿茶作为研究对象,通过分析绿茶中12种酚酸类化合物的含量差异探讨与产地的关联性。结果表明,12种酚酸类化合物在0.02~10.00μg/mL的质量浓度范围内(r>0.991),重复性和稳定性均小于10%;3个地区绿茶中12种酚酸物质的含量存在差异,Bayes分析判别率为56.7%。研究表明茶叶中的酚酸含量差异能对绿茶的产地进行判别,为茶叶的化学分类提供一定的参考。
This research chose green tea from Zunyi,Duyun and Leishan was selected as the research object to study the content differences of 12 phenolic acids and the correlation with producing area in green tea.The results showed that 12 phenolic acids had a good linear trend in the range of 0.02>10.00μg/mL(r>0.991)and the repeatability and stability are less than 10%.There were differences in the contents of 12 phenolic acids in green tea in three regions,and the discrimination rate of Bayes analysis was 56.7%.The research shows that the difference of phenolic acid content in tea can distinguish the origin of green tea,and provide a certain reference for the chemical classification of tea.
作者
卢专
黄永桥
于以竹
毛敏霞
简银池
吴新文
LU Zhuan;HUANG Yongqiao;YU Yizhu;MAO Minxia;JIAN Yinchi;WU Xinwen(Guizhou Testing Technology Research and Application Center,Guiyang 550014,China)
出处
《食品安全导刊》
2022年第15期53-56,61,共5页
China Food Safety Magazine
基金
贵州省科技计划项目(黔科中引地〔2021〕4026)
贵州科学院青年基金(黔科院J字〔2021〕38号)。
关键词
绿茶
超高效液相色谱-串联质谱
酚酸
green tea
ultra-high performance liquid chromatography-tandem mass spectrometry
phenolic acid
