The present invention relates to the novel lactic acid bacteria Lactobacillus mucosae and Bifidobacterium longum, and specifically, to a composition comprising the novel lactic acid bacteria, the composition enabling the inhibition of the expression of the p16 protein, which is an aging factor, and the inhibition of inflammatory factors, thereby being useful in preventing and treating memory impairment, learning disabilities or mental disorders, and in preventing and treating inflammatory diseases.
Lactic acid bacteria and use thereof