Soybean Oligopeptides is a mixture of low molecular weight(200-800 Dalton)peptides composed of 2-6 amino acid. Soybean Oligopeptides can be completely dissolved in water and has balanced amino acid content. It is able to be absorbed nore easily than intacy protein or free amino acid by human body. As a natural health food(medicine)ingredient, not only their high nutritional value, but also their biological activities such as antioxidant activity, ACE inhibitory activity, immmunolorregulation effect, anti-fatigue, the effect of proliferation of strain an so on , soy oligopeptides can also be used in heath food, infant food, sport food, fermentation food, special diets for clinical nutrition and so on.