... of fibroin protein, which creates polypeptide and amino acid. Multiple amino acid and dipeptide, tripeptide are extracted from natural ... of 18 kinds of amino acid, namely, glycin, alanine, alpha-amino-beta-hydroxyrpropionic acid, beta-parahydroxy-phenylpropionic acid (up to 80%), ... 5. other nutritious foods(beverage, biscuit, food containing amino acid, noodles, bean)6. blended with other components, ...