Red grape skin color Description: red grape skin color is natural edible pigment extracted from the grape skin. Its main ingredient is anthocyanidin pigment, including oenins, syringidine etc. The product is dark purple powder. Itf+s easily soluble in water and ethanol water liquor, not soluble in grease and anhydrous alcohol. Its hue and stability are affected by ph value: it appears stable red or amaranth when in acid condition; blue in litmusless condition; dark blue in alkalescent condition. Application area: itf+s used as pigmentation or complementary color in beer confected, soda pop, juice drinks, marmalade, sweet etc. Specification: packed with bag of aluminum foil inside and carton outside. We can also pack with the request from clients Storage and transportation condition: keep in airproof, light prevented, dry and cool place