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Many researches have reported that a wide variety of mutagens was discovered in our surroundings, and we face to the risk of their mutation. It has been pointed that intaking antimutagens such as lactic acid bacteria is effective to reduce mutagens from human intestinal tract. In order to elucidate antimutagenicity of lactic acid bacteria, further studies on the mechanism are necessary. Therefore, we investigated the ability of various cellular components of lactic acid bacteria to adsorb heterocyclic amines. The strains used were five different strains which were isolated from fermented vegetables, and the mutagens examined were four heterocyclic amines which were detected from foods. As the results of adsorbing assay by HPLC, the cell wall fraction showed the highest ability to adsorb PhIP, MeIQx, and MeIQ. The peptidoglycan fraction had the highest ability to adsorb Trp-P-1. Thus different cellular components of lactic acid bacteria adsorbed different heterocyclic amines.

Adsorption of mutagenic heterocyclic aminesby cellular components of lactic acid bacteria from fermented plant products