Abstract
It seems very interesting to study antioxidative effect of kojic acid and its related compounds which are non-toxic. As to the oxidation inhibiting activities of kojic acid and palmitoyl kojic acid, it was found that they were almost ineffective against oxidation of corn oil by Anderson et al.
This report presents the results of oxidation inhibiting tests of O-acyl kojic acid and alkyl kojic acid obtained from the oxidation of lard, whale and soybean oils.Introduction of acyl or alkyl groups into kojic acid increases its solubility in oil. The tested acyl groups are butyroil, capryloyl and lauroyl while alkyl groups are butyl, capryl and lauryl (Table-1, 2). Their antioxidative effects for experimented oils are compared by the A.O.M. or Schaal oxidative tests as summarized in Fig.-1, 2.
