Abstract
As a fundamental study for the application of fatty acid esters of riboflavin to pharmaceutical and nutritional fields, influences of heat and light on riboflavin-2', 3', 4', 5'-tetrapalmitate and tetrabutyrate dissolved in soya bean oil were examined. These esters dissolved in soya bean oil were found to be stable for heating, but rather labile for light irradiation. This photodecomposition was supposed to be provoked with unsaturated fatty acid in the oil, and could be prevented by addition of antioxidant.
