Offer: purple sweet potato color which is extracted from purple sweet potato. Its principal constituent is anthocyanidin. it is suitable as materials in food service industry,such as candy, cake, jam, jelly, and preserved fruit. More than color function, it owns health care function, such as cancer prevention, oxidation resistance and free radical elimination. So it also can be used in cosmetic and medical care industry. Meanwhile, we export high-quality preserved purple sweet potato, dried purple sweet potato powder and fresh edible purple sweet potato.