The results showed that the roselle calyx pigment was a kind of anthocyanin with pyrocatechol and pyrogallol hydroxyl, as well as had glucose and xylose glycoside.

• 结果表明:玫瑰茄红色素属于花青甙类色素,有邻二酚羟基或邻三酚羟基,含有葡萄糖和木糖两种糖苷。