摘要：In the case of lipid oxidation through air at 180°C for 2 hours in glass flask, the increase of 1750cm-1 estercarbonyl absorption was observed in the infra red spectrum and the high electron spin resonance peak was detected. Such increasing absorption and high peak gave the information that the radical polymerization and peroxidation of lipid mainly occurred, though little carbonylization took place via the peroxidation (peroxide). While, the addition of 1% sesamol to the oxidation condition described above brought about the appearance of a new carbonyl absorption (1730cm-1) together with the increase of 1750cm-1 absorption. Especially, triolein of a pure triglyceride gave the typical pattern in the infra red spectrum, which was same pattern as observed in the electron spin resonance. From the change of the infra red spectrum and electron spin resonance, the degrees were indicated of the carbonylization and polymerization of lipid under such drastic oxidation as the addition of sesamol.
