Abstract: The present invention relates to a method of manufacturing fermented soybeans having increased gamma-aminobutyric acid (GABA) content, and more particularly, a method of manufacturing fermented soybeans having increased gamma-aminobutyric acid content which comprises the steps of: adding lactobacillus having glutamate decarboxylase (GAD) activity and glutamate (MSG) to soybeans; grinding and molding the mixture; and spraying starch powder mixed with seed malt onto the surface of the molded mixture. The present invention can provide a method of manufacturing fermented soybeans including GABA, which has been known to accelerate sodium ion discharge through urine, so that it may lower blood pressure hypertension which may be caused from excessive consumption of salts to prevent and can produce functional paste foods satisfying people's taste and desire for health.

Abstract: The present invention relates to a medium composition comprising fermented Korean hot pepper paste, undiluted solution of brewed soy sauce or acid hydrolyzed soy sauce, and a method for producing gamma-aminobutyric acid (GABA) using the medium. More precisely, the present invention relates to a medium composition for culturing lactobacillus having GAD activity, the composition comprising fermented hot pepper paste, brewed soy sauce or acid hydrolyzed soy sauce, and a method for producing a high concentration of gamma-aminobutyric acid from the medium additionally added with glutamic acid or glutamate. The present invention provides a method of producing a high concentration of gamma-aminobutyric acid using the above medium with low production costs. Since the by-products of pastes are used as medium compositions, this medium itself can be added to other pastes or foods to produce functional foods containing gamma-aminobutyric acid.

Abstract: The present invention relates to a method of manufacturing fermented soybeans having increased gamma- aminobutyric acid (GABA) content, and more particularly, a method of manufacturing fermented soybeans having increased gamma-aminobutyric acid content which comprises the steps of: adding lactobacillus having glutamate decarboxylase (GAD) activity and glutamate (MSG) to soybeans; grinding and molding the mixture; and spraying starch powder mix ed with seed malt onto the surface of the molded mixture. The present invention can provide a method of manufacturing fermented soybeans including GABA, which ha s been known to accelerate sodium ion discharge through urine, so that it may lower blood pressure hypertension which may be caused from excessive consumption of salts to prevent and can produce functional paste foods satisfying people's taste and desire for health.