... of anthocyanins.·AppearanceGrape skin extract powder is purplish red, liquid is brown purple, both has the slight characteristic odor of grape. It can ... between 2-6, it is stable and the color is purplish red. The solution color becomes blue, and is unstable when PH ... , candy,cakes,jelly,jam, imitation wine.When use Grape Skin Extract, dissolve the color a small amount of water first, and then mix ...