Company production of corn germ, corn starch in the production process, was collected by-product processing can be used for extracting corn germ oil and corn germ protein. Corn germ oil not only refined into salad oil, cooking oil and margarine nutritious edible oil, raw materials and can be used for high-grade paint, paint and soap industries. After de-oiled cake is rich in protein and other nutrients, it can be used to make a variety of food nutritional supplements.