D-Aspartate is a kind of alfa amino acid. It is widespread in the biosynthesis of role. D Aspartic Acid can be made from oxaloacetic acid by transamination. For plants and microorganisms D-aspartic acid is the raw material of several kinds of amino acids,like methionine, threonine, isoleucine and lysine. NUTRTECH supply various amino acids for food and feed supplements.