Analysis of the pigments extracted from the tea dhool indicated that the soluble pigments of the brew of green tea increased and its colour got darker in the manufacturing process.
对绿茶制造中颜色的变化研究表明，在制造工序中，茶汤颜色不断加深， 水溶性色素种类增加。
The contents of tea polyphenol, flavonoid, tea green pigments, and the free amino acid;
利用紫外分光光度法测定其茶多酚、黄酮类化合物、茶绿色素、游离氨基酸的含量；
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