Curcumin, Food Additives, Food Colorants 1. brightly colored 2. food coloring 3. good quality and price 4.powder Curcumin, Food Additives, Food Colorants Curcumin is brightly colored and may be used as a food coloring. As a food additive, its E number is E100Product Name:CurcuminSynonyms:C.I. 75300; C.I. Natural Yellow 3; 1,6-Heptadiene-3,5-dione, 1,7-bis(4-hydroxy-3-methoxyphenyl)-, (E,E)-; 1,7- ...