natual pigment gardenia Yellow

Gardenia yellow belongs to the carotenoid family.It is the yellow pigment in gardenia. Character Orange yellow crystalline powder, slightly odorous. Performance characteristics Easily soluble in water, immediately dissolves into a transparent yellow liquid. Soluble in ethanol and propylene glycol, insoluble in oil. PH has almost no effect on color.The color is more stable than β -carotene in acidic (pH 4-6) and alkaline (pH 8-11) conditions.The color is more brilight in alkaline solution. It has good staining effect on protein and starch, that is, it has good staining power on hydrophilic food, but it is not stable enough in aqueous solution. Discoloration is more pronounced in acid than in alkaline. It is quite stable to metal ions (such as aluminum, calcium, lead, copper, tin, etc.), and iron ions have a tendency to turn gardenia yellow and black. Oil-soluble annatto soluble in alkaline solution, insoluble in acid and can form precipitation, insoluble in wate…