Fig. 6From: Prenylated flavonoid-enriched fraction from Maclura tinctoria shows biological activity against Staphylococcus aureus and protects Galleria mellonella larvae from bacterial infectionMeasurement of cell permeability. Bacterial cells were incubated in PBS (control) or in PBS containing different concentrations of CTAB or 11FO d and were then exposed to 10 μg/mL crystal violet for 10 min. The culture supernatant was collected for an absorbance reading at 590 nm. Means obtained for three biological replicates. ****p < 0.0001, significantly different from the control (PBS)Back to article page