抄録
In the former paper the authors obtained a well defined polarographic wave which was caused by the oxidation products of fats and oils. It seems that the compound to produce the polarographic wave in oxidized fat and oil is not caused by a single substance, but several substances are related to it. Therefore in this report the authors describe a trial to separate the volatile compounds produced during the autoxidation of fats and oils by the systematic steam distillation. In this report the following results are obtained.
1) A well defined polarographic wave given by the volatile portion of the oxidized fats and oils had a half-wave potential of -1.9 V vs. S. C. E.
2) Separation by steam distillation revealed that the compound giving polarographic wave was aldehyde fraction of the volatile matter formed in the autoxidation of the fats and oils.