Abstract
The red substances were isolated from the soybean oil in color reversion and also from the sludge obtained in deodorizing procedure of soybeen oil. They were identical with the tocored-1 which is one of the oxidation products of α-, and γ-tocophrols in reaction with HNO_3,or FeCl_3 in thin layer chromatography, UV-Vis spectrum and IR spectrum. It cannot be concluded that the color revertion is due to the tocored-1 only, but it seems to be true that the tocored-1 takes great part in color reversion of soybean oil.
