Figure 1.

Influence of the incubation conditions (i.e., growth medium, incubation temperature, and the ratio of L. monocytogenes and S. Typhimurium in the inoculum) on the adherence (OD) of the dual-species biofilm (n = 3). Biofilms were incubated for 24 h prior to the quantification procedure and were considered to be strongly adherent as the average OD values were higher than their corresponding 4 × OD_C-value. For the influence of the growth medium: for each temperature and each ratio, significant differences have been indicated by means of small letters, with “a” bearing the lowest value. For the influence of the incubation temperature: for each growth medium and each ratio, significant differences have been indicated by means of capital letters, with “A” bearing the lowest value. For the influence of the inoculum ratio: for each growth medium and each incubation temperature, significant differences have been indicated by means of numbers, with “1” bearing the lowest value.