1961 年 10 巻 11 号 p. 670-675
The ultra-violet absorption spectra of n-hexane solutions of some oils deacidified by means of the usual anion exchange resin (Amberlite IRA-401-OH type) and the substances absorbed by it were investigated. The remarkable deviation of the spectra of the deacidified rice bran oil from the crude oil was observed while little deviation of them was found in the case of soybean oil. From the spectra of the same solution of the absorbed substances, the existence of the considerable amount of oryzanol which had already been found by Tsuchiya, was confirmed and unknown component having the absorption at 280mμ was assumed in the rice bran oil. In the soybean oil some components which have maxima of the absorption spectra near 260, 269, 280, 300 and 315mμ respectively were also assumed.