Fig. 3.

A Crystal violet uptake of S. enteritidis ATCC13076 treated with the CFS of L. rhamnosus SQ511. EDTA (0.25 M) was used as a positive control. The data are represented as means ± SEM of three independent experiments, ****P < 0.0001, when compared with control. B Effect of CFS of L. rhamnosus SQ511 on S. enteritidis ATCC13076 membrane potential and ROS generation detected by H₂DCFDA staining. The bacterial cells were incubated with or without CFS of L. rhamnosus SQ511 for 4 h, stained with rhodamine 123 and H₂DFFDA, and observed under laser confocal microscopy (×100)