Soybean peptide 1.HIgh Qualty with Best Price 2.Original Manufacture 3.Quality Raw Material 4.Rich Source Soy peptide is one of polypeptides made up of 2-6 amino acids, of molecular weight under 1000 Dalton. Description: Compared with the original protein, soybean peptide has unique functional characteristics such as water solution, highly solubility, and foaming, and it could be completely ...