Antioxidative Activity and Synergistic Effect of Ascorbyl Stearate

Abstract

Antioxidatve activity of ascorbyl stearate and/or its synergistic effect on tocopherol and nitrogen containing compounds were investigated on linoleic acid in aqueous system at pH 7.0 and on lard by AOM. The following results were obtained. (1) The antioxidative activity of ascorbyl stearate on linoleic acid was hardly recognized, but its synergistic efffct on amino acids and natural tocopherol were observed. (2) A comparison of the antioxidative activities of glycine and three kinds of peptide containing glycine indicates the stronger activity of dipeptide than other peptides and the stronger synergistic effect on ascorbyl stearate. (3) Ascorbyl stearate showed hardly the antioxidative activity on lard by AOM. However, the synergistic effect was observed in the combination of ascorbyl stearate, dl-a-tocopherol and lecithin on lard by AOM.