LACTIC ACID BACTERIUM HAVING HIGH PRODUCTIVITY OF GAMMA- AMINOBUTYRIC ACID, FERMENTED FOOD WITH HIGH CONTENT OF GAMMA-AMINOBUTYRIC ACID USING THE SAME LACTIC ACID BACTERIUM AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To obtain the subject new lactic acid bacterium comprising Lactobacillus brevis TY414 having high productivity of γ-aminobutyric acid and capable of efficiently providing the γ-aminobutyric acid having suppressing actions on blood pressure elevation and useful for a food, etc., having high health directivity in a short time. ;SOLUTION: This lactic acid bacterium is new Lactobacillus brevis TY414 (FERM P-16910) having the following mycological properties and high productivity of γ- aminobutyric acid, an incipient pH 5.7 in an MRS liquid culture medium; the form of the microorganism when cultured at 30°C for 16 hr: the form of the microorganism: bacillary; Gram staining: positive; motility: none; spore: none; catalase: none; facultative anaerobic property; growth temperature range: 20-40°C; growth pH range: 3.8-9.4; lactic acid fermentation: heterofermentative; optical rotatory power of lactic acid: DL; fermenting property of saccharide; strong fermentation L-arabinose, ribose, D- xylose, galactose, glucose, fructose, etc., weak fermentation mannitol, N- acetylglucosamine, cellobiose, etc. The resultant lactic acid bacterium is used for producing the γ-aminobutyric acid useful for a food, etc., having high health directivity.;COPYRIGHT: (C)2000,JPO