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.

利用玉米生糖工艺中淀粉渣提取玉米黄色,主要成分是一种脂溶色和少量较大色,呈血红色,其稀释液呈柠檬黄色。