Sesame oil. III. Antioxidant properties of sesamol
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Summary and Conclusions
Sesamol possesses marked antioxidant activity in lard and also exhibits a pronounced protection for vegetable oils, especially for sesame oil.
The antioxidant activity of sesamol strengthens the assumption that free sesamol is responsible for the unusual stability of hydrogenated sesame oil, a subject which has been reported in another article in this series.
The use of sesamol as a commercial antioxidant would probably not be permitted until it has been shown to possess no undesirable physiological activity. However the presence of sesamol in concentrations up to 0.2% in sesame oil, one of the oldest edible oils known to man, would probably indicate that no serious adverse physiological problem exists in this respect. Although usually present in a bound form (sesamolin), this sesamol is known to be liberated by the action of mineral acids, even when quite dilute.
Sesamol is a very low molecular weight compound which is sufficiently volatile to be removed by deodorization, consequently it should be added to the fat after deodorization.
KeywordsPhytosterol Sesamin Sesamol Peracetic Acid Color Test
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