Green tea contains a number of flavonols with the basic structure Specific flavonols found in tea include myricetin (hyd绿茶含有一些黄酮醇,其基本化学结构为:茶中特有的黄酮醇有杨梅黄酮(3'、4'、5'碳位上羟基化)、豕草花粉苷(3'和4'碳位上羟基化),莰非醇(4'碳位上羟基化),以及它们的糖苷物。