Yellow Pigments in Salted Radish

Abstract

Three yellow pigments (Y1, Y2 and Y3) were isolated from salted radish by sephadex G-25 column chromatography and paper electrophoresis. Two of them, Y1 and Y2, were purified by thin layer chromatography. Y1 showed almost the same absorption spectrum as Y2. Both pigments had their absorption maxima at 405nm and were presumed to be nitrogen-containing compounds from the color reaction with Dragendorff's reagent. Y3 was not purified, but had no absorption maximum in the visible region of the spectrum.