Hydroethanolic Extracts of Haplopappus baylahuen Remy and Aloysia citriodora Palau Have Bactericide Activity and Inhibit the Ability of Salmonella Enteritidis to Form Biofilm and Adhere to Human Intestinal Cells

Figure 7

Quantification of the relative expression of the hilA gene. Salmonella Enteritidis was incubated with vehicle (control) or 1 or 2 mg/ml of bailahuen or cedron extract for 24 hours; subsequently, RNA was extracted, and cDNA was formatted to determine gene expression levels using qPCR. The data are shown as percentage of control (; ). The values indicate significant difference, . Note that the expression of hilA decreases by more than 50% in the presence of bailahuen and cedron extracts with respect to the control.