Jung Hyen Jang, Euk Seob Kim, Shu Yu Wu, Jian Liang Lu, Hui Ling Liang, Ying Ying Du, Chen Lin, Yue Rong Liang
언어
영어(ENG)
URL
https://www.earticle.net/Article/A88426
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원문정보
초록
영어
Parameters of soluble solids, amino acids, catechins, and color difference of 24 green tea samples from China and Korea were determined. The levels of soluble solids, amino acids, total catechins, and infusion lightness in tea samples from Korea were higher than those from China. Concentrations of epigallocatechin galate and epigallocatechin in teas from China were higher than tea samples from Korea. Geographical origin of teas from the 2 countries was discriminated using parameters of infusion lightness, gallocatechin, and total catechins and applying principal component analysis.
목차
Abstract Introduction Materials and Methods Materials Preparation of tea infusions Color difference analysis HPLC analysis of tea infusion Determination of amino acids Determination of soluble solids Statistics Results and Discussion Comparison of color parameters Comparison of chemical compositions Principal component analysis (PCA) References