Study on the Color of Red Grape Wine

Color plays important roles in sensory quality for red grape wine. The main substances for color formation of red grape wine are anthocyanins and their concentration and composition determine the degree and the stability of grape wine color. Many factors including raw materials quality, grape cultivation, fermentation conditions, stability treatment, microzyme, additives (organic acids, maceration enzymes and tannin etc.), aging, and storage could influence the color of grape wine. In this paper, the research concerning red grape wine color was summarized, and the existed problems in red grape wine production in China were discussed.