Method of manufacturing ferulic acid
AssigneesTsuno Food Industrial Co., Ltd., Wakayama Prefecture
InventorsHisaji Taniguchi, Eisaku Nomura, Takuo Tsuno, Seiko Minami, Koji Kato, Chieko Hayashi
Life of this patent
Estimating the term…
Abstract
A waste oil, an alkaline oil cake, and a crude fatty acid which are discarded as waste materials or obtained as a by-product in the manufacture of rice salad oil are subjected to hydrolysis in the presence of an alkali so as to efficiently manufacture ferulic acid. The waste materials or by-product accompanying the manufacture of rice salad oil or rice fatty acid, which were disposed of by means of burning in the past, are effectively utilized in the method of the present invention.
Claims11
A method of manufacturing ferulic acid, comprising the steps of:
- preparing a raw material containing .gamma.-oryzanol, said raw material selected from the group consisting of a waste material, a by-product, and a mixture of said waste material and by-product accompanying the manufacture of rice salad oil or rice fatty acid from rice bran;
- and
- subjecting the .gamma.-oryzanol-containing raw material to hydrolysis in the presence of an alkali including the steps of:
- (a) mixing the raw material with an alkali and stirring the resultant mixture while heating;
- (b) cooling the reaction mixture obtained in step (1);
- (c) pouring an organic solvent into the cooled reaction mixture so as to remove the materials soluble in said organic solvent and removing the organic solvent leaving an aqueous solution.
- (d) acidifying the aqueous solution obtained after removal of the materials soluble in the organic solvent so as to precipitate ferulic acid;
- and thereafter
- (e) removing the precipitated ferulic acid, dissolving it in water and recrystallizing ferulic acid.
Dependencies are inferred from the claim text.