Xanthin in corn starch residue is a mixture of fat soluble and water soluble pigments, which are blood red in colour in the pure extraction and lemon yellow in its diluted solution.

• 利用玉米生产葡萄糖工艺中的淀粉渣提取的玉米黄色素,主要成分是一种脂溶性色素和少量的极性较大的色素,呈血红色,其稀释液呈柠檬黄色。