BACTERIOCIN PRODUCTION OF LEUCONOSTOC-CARNOSUM LA54A AT DIFFERENT COMBINATIONS OF PH AND TEMPERATURE

Leuconostoc carnosum LA54A produces a bacteriocin which is active against Listeria monocytogenes and Listeria innocua. The ability of Lc. carnosum to produce the bacteriocin at various combinations of the growth parameters pH and temperature was analyzed. In the case of this strain bacteriocin production seems to be coupled to growth rate. This fact enables the prediction if Lc. carnosum can produce the bacteriocin at a given set of growth parameters, simply by predicting the growth rate of this organism. In addition we have analyzed the growth behavior of the target organism L. innocua WS2258 at the same set of growth parameters.