-aminobutyric acid-enriched food material and method for producing -aminobutyric acid

摘要

Disclosed are -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 C. or lower. Also disclosed is a method for producing -aminobutyric acid by extracting the -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.