Research Article

Antibiofilm Activity of Extract and a Compound Isolated from Triumfetta welwitschii against Pseudomonas aeruginosa

Figure 3

The effects of B1 on the growth of P. aeruginosa. TSB: tryptic soy broth. Values are expressed as mean OD at 590 nm wavelength ± the standard deviation (n = 4). The difference between the control and other sample treatments was tested at a 95% confidence interval. The asterisks indicate a significant difference from the positive control with indicating and indicating . B1 showed antibacterial activity from a concentration of 6.3 μg/ml. The MIC of B1 against P. aeruginosa was 25 μg/ml.