... pigment extracted from the anthocyanins, flavonoids composition. 2 products for the purple liquid, soluble in water and ethanol-water, but insoluble ... green. Red Sweet Potato Color application: it is widely used for making wine, beverage, jam, candy, cakes and food coloring, ... as mentioned above, Powder two years from production date, liquid is 24months(unopened). Once opened, should seal up again ...