摘要
建立快速同时测定乌龙茶茶汤中儿茶素和咖啡因等主要滋味化合物的超高效液相色谱新方法,并将其与光谱分析结果和传统滋味感官评价结果结合,运用主成分分析对10支乌龙茶茶汤滋味样品进行定性定量鉴别区分,得到乌龙茶特色滋味相关化合物和乌龙茶本底味相关化合物。
A new ultra-high performance liquid chromatography(UPLC)was established for the rapid and simultaneous determination of taste components(catechin,caffeine,etc.)in oolong tea juice. By combining it with the results of spectral analysis and traditional sensory taste evaluation,principal component analysis(PCA)was used for 10 oolong tea juice taste samples for qualitative and quantitative identification and distinction to get compounds correlated with the characteristic and background tastes of oolong tea.
出处
《饮料工业》
2013年第10期25-31,共7页
Beverage Industry
基金
中国博士后科学基金面上项目(编号:20110490278)
关键词
乌龙茶茶汤
主成分分析
超高效液相色谱
多酚
可溶性蛋白
游离氨基酸
Oolong Tea Juice
Principal Component Analysis(PCA)
Ultra-high Performance Liquid Chromatography(UPLC)
Polyphenol
Soluble Protein
Free Amino Acid