Curcumin is a chemical constituent extracted from the rhizomes of some plants of Curcumaceae and Araceae.Curcuma contains about 3%-6%. It is a rare Dione pigment in plant kingdom.It is a Dione compound.
Curcumin is one of the largest selling natural edible pigments in the world. It is a food additive approved by the World Health Organization, the Food and Drug Administration of the United States and many other countries.