**Figure 6:** Production of SCFAs and lactic acid by *L. fermentum* NCIMB 5221. **(a)** Lactic, **(b)** acetic, **(c)** propionic, and **(d)** butyric acids, and **(e)** total SCFAs have
been produced by probiotic bacteria in the conditioned cell culture medium (CM). The data values represent the mean ± SEM (n=3). ***p < 0.001 compared with
*L. acidophilus* ATCC 314 and *L. rhamnosus* ATCC 53103. **(f)** Analysis of the correlation between cell growth inhibition by probiotic CM and the concentrations
of SCFAs secreted in the CM. Plots represent the data of cell growth inhibition showed in Figure 5. The lines were obtained by linear regression analysis. The
data values represent the mean ± SEM (n=3). |