COMPOSITION COMPRISING LACTIC ACID BACTERIUM HAVING HIGH ANTI-ALLERGIC ACTIVITY, AND METHOD FOR PRODUCTION OF THE LACTIC ACID BACTERIUM

摘要

Disclosed is a lactic acid bacterium having a high and stable anti-allergic activity, which can be used effectively in various forms in various use applications. Specifically, a bacterium Lactobacillus paracasei strain KW3110 or a mutant thereof is subjected to heat treatment at a temperature not lower than 60°C and lower than 100°C for a period not shorter than 10 minutes and shorter than 60 minutes to increase the anti-allergic activity of the lactic acid bacterium dramatically and also stabilize the anti-allergic activity. By the heat treatment, it becomes possible to provide an anti-allergic composition comprising, as an active ingredient, a cell of a lactic acid bacterium having a dramatically increased and stable anti-allergic activity, in which the anti-allergic activity of the lactic acid bacterium is dramatically increased.