.gamma.-aminobutyric acid-enriched food material and method for producing .gamma.-aminobutyric acid
AssigneeDirector General of Chugoku National Agricultural Experiment Station, Ministry of Agriculture, Forestry and Fisheries
InventorsTakayo Saikusa, Yutaka Mori, Toshiroh Horino
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Abstract
Disclosed are .gamma.-aminobutyric acid-enriched food materials to be obtained by dipping at least one material chosen from among germs of rice, rice bran containing germs, whole rice, germs of wheat and wheat bran containing germs in water at a pH of from 2.5 to 7.5 and at 80.degree. C. or lower. Also disclosed is a method for producing .gamma.-aminobutyric acid by extracting the .gamma.-aminobutyric acid-enriched food material with an acid followed by purifying the resulting extract by ion-exchanging chromatography. These products are useful as particular nutrient foods or additives to foods for patients suffering from hypertension.
Claims15
A .gamma.-aminobutyric acid-enriched material obtained by dipping at least one material chosen from among germs of rice, rice bran containing germs, whole rice, germs of wheat and wheat bran containing germs in water at a pH of from 2.5 to 7.5 and at 80.degree. C. or lower.
A method for producing .gamma.-aminobutyric acid comprising extracting a .gamma.-aminobutyric acid-enriched material, which is obtained by dipping at least one material selected from the group consisting of germs of rice, rice bran containing germs, whole rice, germs of wheat and wheat bran containing germs in water at a pH of from 2.5 to 7.5 and at 80.degree. C. or lower, with an acid followed by purifying the resulting extract by ion-exchanging chromatography.
A method for producing .gamma.-aminobutyric acid-enriched material comprising dipping at least one material selected from the group consisting of germs of rice, rice bran containing germs, whole rice, germs of wheat and wheat bran containing germs in water which is at a pH of from 2.5 to 7.5 and at a temperature not more than 80.degree. C. with agitation of said at least one material in said water.
Dependencies are inferred from the claim text.