During the production of starch ,bran , core and glüten. Corn Gluten is rich in energy and protein.Corn Gluten is a valuable source of methionine. It also contains high level of xanthophyll. Amino acids such as corn glüten, methionine and cystine are a protein source used in feeds because they provide high energy and protein. In addition , corn glüten can be used instead of fish flour in fish feeds because it is rich in amino acids with a high digestibility and does not contain anti-nutritive substances.