Table 4.
Antibacterial effect of aqueous extract against P. aeruginosa, E. coli, B. subtilis, and S. aureus.
| Treatment | Zones of inhibition (mm) | |||
|---|---|---|---|---|
| P. aeruginosa | E. coli | B. subtilis | S. aureus | |
| 200 mg/ml | 6.33 ± 0.29b | 11.67 ± 0.58b | 7.67 ± 0.58b | 5.42 ± 0.14b |
| 100 mg/ml | 6.33 ± 0.29b | 10.33 ± 0.58b | 7.67 ± 0.58b | 5.42 ± 0.14b |
| 50 mg/ml | 6.17 ± 0.29b | 8.67 ± 0.58c | 7.33 ± 0.58b | 5.33 ± 0.14b |
| 25 mg/ml | 5.00 ± 0.00c | 6.33 ± 0.58d | 7.17 ± 0.29b | 5.25 ± 0.00b |
| 12.5 mg/ml | 5.00 ± 0.00c | 5.00 ± 0.00d | 7.00 ± 0.00b | 5.00 ± 0.00b |
| 6.25 mg/ml | 5.00 ± 0.00c | 5.00 ± 0.00d | 7.00 ± 0.00b | 5.00 ± 0.00b |
| Negative control | 5.00 ± 0.00c | 5.00 ± 0.00d | 5.00 ± 0.00c | 5.00 ± 0.00b |
| Ciprofloxacin | 19.33 ± 58a | 32.33 ± 0.58a | 22.67 ± 1.15a | 11.67 ± 0.58a |
Descriptive statistics expressed as mean ± standard deviation for three replicates. Values with the same letter along the column are not significantly different by one-way ANOVA followed by Bonferroni post hoc test (p > 0.05).