To provide a method for producing an
alkylresorcinol-containing liposoluble composition that comprises
alkylresorcinol as a liposoluble constituent derived from
bran of gramineous cereals, the concentration of
alkylresorcinol being more than 5
mass%, and the composition having high purity; and to provide the alkylresorcinol-containing liposoluble composition.SOLUTION: There is provided a method for producing an alkylresorcinol-containing liposoluble composition, the method comprising: adding an alkali to a solution obtained by eluting liposoluble components from
bran of gramineous cereals to adjust the pH to 10 or more; adding and mixing n-
hexane to the resulting solution; separating by a liquid-liquid separation operation an n-
hexane phase containing unnecessary liposoluble components other than alkylresorcinol to obtain an
ethanol-containing
solvent phase; adding an acid to this
solvent phase to adjust the pH to 2 to 6, and adding and mixing n-
hexane into the resulting
ethanol-containing
solvent phase; separating the n-hexane phase by a liquid-liquid separation operation; and volatilizing the n-hexane to obtain the alkylresorcinol-containing liposoluble composition.SELECTED DRAWING: None