| abstract |
PROBLEM TO BE SOLVED: To provide a low-cost and simple method for producing spore-forming lactic acid bacteria having high stability in an acidic aqueous solution. SOLUTION: A medium having an initial culture pH of 4.5 to 6.5, Alternatively, spore-forming lactic acid bacteria are cultured in a medium to which 0.01 to 5.0% by weight of a soybean decomposition product is added, or in a medium in which both are combined. |