Table 2.
In vitro antibacterial activity of C. myrrha oleo-gum extract against tested bacteria.
| Test species | Zone of inhibition (mm)∗ | |
|---|---|---|
| Resin extract | Ciprofloxacin | |
| S. typhimurium (ATCC 13311) | 18.33 ± 0.056f | 15.67 ± 0.029f |
| E. coli (ATCC 10536) | 28.33 ± 0.044b | 21.00 ± 0.076b |
| P. aeruginosa (ATCC 27853) | 22.33 ± 0.012e | 17.00 ± 0.088e |
| P. fluorescens (ATCC 13525) | 21.00 ± 0.015e | 15.00 ± 0.009f |
| K. pneumoniae (ATCC 10031) | 25.33 ± 0.035d | 18.33 ± 0.053d |
| B. subtilis (ATCC 11774) | 28.33 ± 0.048b | 20.67 ± 0.039c |
| S. pyogenes (ATCC 12344) | 26.67 ± 0.103c | 21.33 ± 0.011b |
| S. epidermidis (ATCC 12228) | 28.67 ± 0.099a | 23.67 ± 0.047a |
∗Concentration of extracts 10 mg/mL (100 μg/disc). Inhibition zones were the mean of three replicates. The mean results were expressed as mean ± SD. Different superscript letters (a, b, and c) denote significance, while similar letters denote no significance between groups. The mean difference is significant at p < 0.05.