Here, plantaricin UG1 was shown to inhibit Listeria monocytogenes LMG10470 (L. monocytogenes) cells. The inhibition was not caused by lactic acid produced by the bacteriocin producing strain Lactobacillus plantarum UG1 (Lact. plantarum). Partially purified plantaricin UG1 had a higher antilisterial activity than Lact. plantarum cells in both Zabady and Kareesh cheese samples during their maturation. Compared to the antilisterial activity in Kareesh cheese, plantaricin UG1 showed a faster effect during Zabady manufacture.
Keywords: Kareesh Cheese; Lactobacillus plantarum UG1 (Lact. Plantarum); Listeria monocytogenes LMG 10470 (L. monocytogenes); Zabady; bacteriocin; plantaricin UG1.