Abstract
The yellow pigments extracted from the basis of the caudal fin of saury, Cololabis saira, have been examined.
Considering their solubilities in solvents, and the colour reactions by acids, the pigments are supposed to belong to carotenoids. From the unsaponifiable part, three pigments were separated by means of chromatography on alumina, and the absorption spectra of the solutions in n-hexane were measured, and the results shown in Table 2 and Table 3 were obtained.
