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

Figure 1

Phytochemical analysis of propolis and bud poplar resins. Chromatogram of poplar bud resins extract (blue line) and propolis extract (red line). Chrysin (1), galangin (2), and pinocembrin (3) were quantified using pure substances as external standards. The concentration was calculated by means of a calibration curve in the range of 0.1–0.02 mg/mL.