It's a kind of good feed purified additive for poultry and livestocks growing and disease-resistant. Furthermore,  it can also be used to extract natural pigment and various amino acid;

Corn protein powder is the by-product of starch factory after produced corn starch. Its raw material is corn, by peeling, crashing, deslagging, and extracting starch and then concentrate, dried the yellow water to get protein products. It contains a lot of lutein that has golden color.