MATERIAL HIGHLY CONTAINING GAMMA-AMINOBUTYRIC ACID, ITS PREPARATION METHOD AND FOOD AND DRINK CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a material containing -aminobutyric acid in a large amount, an effective preparation method and a food and drink containing the material highly containing the -aminobutyric acid. SOLUTION: A specific amount of glutamic acid is added to a ground pumpkin solution so that the PH of the solution is 5.0-6.5, preferably 5.6-6.0, and the added glutamic acid is converted to -aminobutyric acid by an enzyme existing in the pumpkin. The conversion operation is repeated in several times.