Sweetpotato storage root flesh contains the active compositions which can make the anthocyanins color fading, the pigment loss could reach more than 50%.

• 甘薯薯肉内含有能使花青素分解退色的活性物质,在甘薯匀浆中可导致一半以上的色素损失,严重影响了色素提取效率。