Table 4. Inhibition Effect of the Ethanolic Extracts of Olive Root Wood and Bark Parts against the Microorganisms.
| inhibition zone (mm) |
||||
|---|---|---|---|---|
| bacteria strain (positive) | bacteria strain (negative) | |||
| S. aureusa | B. subtilisa | P. aeruginosaa | E. colia | |
| root wood | 35 ± 0.5 | 34 ± 0.5 | 31 ± 0.5 | 31 ± 0.2 |
| root bark | 33 ± 0.5 | 33 ± 0.2 | 30 ± 0.3 | 29 ± 0.8 |
| ampicillin | 33 ± 0.2 | 33 ± 0.2 | 31 ± 0.1 | 30 ± 0.1 |
a
S. aureus: Staphylococcus aureus, B. subtilis: Bacillus subtilis, P. aeruginosa: Pseudomonas aeruginosa, and E. coli: Escherichia coli.