| 摘要 |
<p>The oligopeptides or polypeptides are comprised of a plurality of amino acids which are interconnected by peptidic bonds, at least one of these amino acids being a stereoisomer of an amino acid of the formula C6H9O7N with a molecular weight of 207 (aminocitric acid; ACS). The peptides are obtained from different organic tissues and bacterial cells. </p> |
