... powder is widely used in food, acidic beverages, wine, jam, and jelly.Product source: Red grape peel pigment is extracted from the ... is widely used in coloring food, acidic beverages, wine, jam and jelly. In addition, it has health care effects because it contains ... is widely used in coloring food, acidic beverages, wine, jam and jelly. In addition, it has health care effects because it contains ...