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色素和少量的极较大的色素,呈血红色,稀释液呈柠檬黄色。