The ellagic acid pigment was extracted from granatum,and its physical and chemical property,such as,light,hot,acid,alk,oxidizier and reducer,food additives were studied.

• 从石榴皮中提取得到了一种鞣花酸类色素,并对该色素的理化性质进行了研究,分析测试了光、热、酸、碱、氧化剂、还原剂、食品添加剂对其性能的影响。