The invention discloses an active 
peptide with an 
oil oxidation resisting function, a preparation method of the active 
peptide and an application of the active 
peptide, and belongs to the technical field of 
plant-derived biological active peptides. 
Oil processing by-products, namely, oil crops after oil extraction serve as raw materials, the 
oil oxidation resisting peptide with the functional characteristics of removing 
DPPH, chelating 
metal ions, inhibiting 
lipid peroxidation, prolonging 
plant oil oxidation induction time, enhancing 
emulsion stability and the like is prepared by the steps ofprotein extraction, 
infrared pretreatment, 
proteolysis, freeze-
drying, 
lipotropic portion extraction, vacuum concentration, 
drying and the like, can serve as a natural 
antioxidant, is applied to storage and preservation of oil and other oil-containing food, solves the problems of product deterioration and harmful product generation caused by oil oxidation and prolongs food 
shelf life. The method has great practical significance and 
social significance for restraining oil oxidation, guaranteeing 
food safety and promoting technical progress.