The tolerance of E. durans LAB18s in the presence of different concentrations of bile salts was analyzed (Fig. 1). The results showed that E. durans LAB18s was able to survive at all bile salt concentrations tested (up to 1.5%) to give an exponential growth from the inoculation (0 h) until 4 h of incubation. There were no significant differences between control (BHI, pH 7, without the addition of bile salts) and different treatments with bile salts.