Corn steep powder is widely used in the fermentation industry of antibiotics (penicillin, erythromycin, gentamicin, macromycin, aureomycin, etc.), vitamins (VC, VB2, etc.), amino acids (glutamic acid, lysine, phenylalanine, etc.), enzyme preparations (amylase, glycosylase, etc.), and other nutrients such as water-soluble plant protein and water-soluble vitamins in the process of biological fermentation. It is also used in animal feed and organic fertilizer.