Antibiofilm and Antioxidant Activity of Propolis and Bud Poplar Resins versus Pseudomonas aeruginosa

Figure 3

Effect of propolis and bud poplar resins extracts on biofilm formation. P. aeruginosa biofilm was developed in presence or absence of different extracts (10, 50, and 100 μg/mL) or diluent (same concentration present in the propolis solutions) for 24 h at 37°C. Biofilm biomass was quantified by crystal violet assay (absorbance 570 nm). (biofilm grown in the presence of propolis or bud poplar resins extracts versus biofilm formed in presence of diluent).