Figure 3.

Monitoring the pH of pure and mixed cultures of B7 strain and indicator pathogens. (a) pH variation of Leuconostoc mesenteroides B7 and Listeria innocua strains in both pure and mixed cultures. (b) pH variation of Leuconostoc mesenteroides B7 and Staphylococcus aureus strains in both pure and mixed cultures. (c) pH variation of Leuconostoc mesenteroides B7 and Listeria ivanovii strains in both pure and mixed cultures. (d) pH variation comparison of Leuconostoc mesenteroides B7, Listeria innocua, Staphylococcus aureus, and Listeria ivanovii strains in mixed culture.