Gardenia Blue, a natural food pigment, is got from the gardenia (Gardenia jasminoides ELLIS) fruit of madder family by biological fermentation.
The appearance of gardenia blue is dark blue. It can easily dissolve in water, ethanol solution and propylene glycol solution, can not dissolve in organic solvent. The shade is stable in medium when PH is between 4 to 8. It has a good resistance to temperature, but not to light. The dyeability is good to protein than starch.
Functions and Applications
1. As pigments, food additives of seasoning, it is mainly used in food& beverage field.
2. As natural pigments, this can be added in cosmetic field.
3. Geniposide a variety of purposes, can be made of natural food coloring agent, is used to treat cardiovascular, liver and gallbladder diseases and diabetes raw materials such as drugs.