期刊论文

中文

茶叶科学

1000-369X

1990

01

59-64

本校为第一机构

用薄层色谱扫描法和分光光度法,分别测定了红茶和乌龙茶中的主要脂溶性色素(包括叶绿素及其降解产物和类胡萝卜素主要组分)和多酚类氧化产物(TF、TR 和 TB),并就色素系统的内部比例与外形色泽品质的关系作了初步探讨。结果表明,(Chl a、b+Cd a、b)/Car、(Chl a、b+Cda、b)/(Py a、b+Po a、b)和(Py a、b+Po a、b)/TR 能较合理地解释红茶与乌龙茶外形色泽形成的化学实质。

In this paper,the chief fat-soluble pigments,including chlorophylls andtheir decomposed products and main constituents of carotenoids,and oxidedproducts of polyphenols(TF,TR and TB)in black tea and Oolong tea wredetermined with TLC scanning method and spectrophotometry respectively.Moreover,the relationship between the constituent ratio of pigment systemand the color quality was probed.Results showed that the appearance colorformations of black tea and Oolong tea could be chemically described withthe constituent ratios expressed b...