Figure 1.

(a) Inhibition of virulence determinants and (b) growth curves of P. aeruginosa PA14 in absence or presence of different cerPAC concentrations. LasA: staphylolytic protease, LasB: elastase and AprA: alkaline protease. Results are expressed as means and standard deviations (SD) of triplicate enzyme assays (*p < 0.001). Bacterial growth (OD₆₀₀) was monitored at 37 °C for 18 h in TSB medium. Error bars with average data points of growth kinetics represent the standard deviation of values obtained from four replicates. Abbreviations: cerPAC x, Cranberry extract rich in proanthocyanidins at x μg mL⁻¹ (e.g., cerPAC 300 indicates cerPAC at 300 μg mL⁻¹).