Figure 5

(a) Pyocyanin assay. (b) Restraining and degrading the biofilm formed by P. aeruginosa PAO1. PAO1 was incubated with different concentrations of PBS, CS, CE, and CSCE for 48 h at 37 °C in a 96-well plate. The biofilm formed by the bacteria was determined. *P < 0.05; **P < 0.01; the data represent the mean ± SD.