| 摘要 |
PURPOSE: To produce high-purity γ-aminobutyric acid from a food material by preparing the food material containing the γ-aminobutyric acid at a high concentration from a rice embryo, rice bran containing the embryo, milled rice with the embryo, wheat embryo and wheat bran, etc., containing the wheat embryo according to simple operations. CONSTITUTION: An acid is added to extract a food material, obtained by immersing at least one of rice embryo, rice bran containing the embryo, milled rice with the embryo, wheat embryo and wheat bran containing the wheat embryo in water under conditions of pH 2.5-7.5 and <=50 deg.C and enriched with γ- aminobutyric acid. The resultant extract is then purified by an ion exchange chromatography to afford the γ-aminobutyric acid. |
