Table 3.
Comparison of mean inhibition zone of ethanol, methanol, and n-hexane solvent extracts of V. auriculifera against test bacteria.
| Test organism | solvents | Mean IZ(mm) ±SD | Positive and negative controls |
|
|---|---|---|---|---|
| Gentamycin | DEMO | |||
| S.aures(ATTC 43300) | Ethanol | (23.00 ± 3.00)a | (20.67 ± 3.51)a | 0.00 ± 0.00 |
| Methanol | (20.67 ± 3.05)a | (20.67 ± 3.51)a | 0.00 ± 0.00 | |
| n-hexane | (00.00 ± 0.00)b | (20.67 ± 3.51)a | 0.00 ± 0.00 | |
| S.aures(clinical isolate) | Ethanol | (22.00 ± 2.00)ab | (16.33 ± 2.51)b | 0.00 ± 0.00 |
| Methanol | (17.33 ± 2.30)bc | (16.33 ± 2.51)b | 0.00 ± 0.00 | |
| n-hexane | (00.00 ± 0.00)c | (16.33 ± 2.51)b | 0.00 ± 0.00 | |
| E.coli(ATTC 35218) | Ethanol | (09.33 ± 2.30)ac | (20.00 ± 2.00)a | 0.00 ± 0.00 |
| Methanol | (12.67 ± 2.88)ac | (20.00 ± 2.00)a | 0.00 ± 0.00 | |
| n-hexane | (00.00 ± 0.00)b | (20.00 ± 2.00)a | 0.00 ± 0.00 | |
| E.coli(clinical isolate) | Ethanol | (0.00 ± 0.00) | (16.33 ± 2.08)b | 0.00 ± 0.00 |
| Methanol | (0.00 ± 0.00) | (16.33 ± 2.08)b | 0.00 ± 0.00 | |
| n-hexane | (0.00 ± 0.00) | (16.33 ± 2.08)b | 0.00 ± 0.00 | |
| P.auroginosa(ATTC 27853) | Ethanol | (9.00 ± 2.00)e | (20.67 ± 1.15)a | 0.00 ± 0.00 |
| Methanol | (9.00 ± 2.00)e | (20.67 ± 1.15)a | 0.00 ± 0.00 | |
| n-hexane | (0.00 ± 0.00)b | (20.67 ± 1.15)a | 0.00 ± 0.00 | |
| S.typhimurium(ATTC 1333) | Ethanol | (7.67 ± 1.52)f | (20.67 ± 1.15)a | 0.00 ± 0.00 |
| Methanol | (28.67 ± 2.30)g | (20.67 ± 1.15)a | 0.00 ± 0.00 | |
| n-hexane | (0.00 ± 0.00)b | (20.67 ± 1.15)a | 0.00 ± 0.00 | |
*Values were means of triplicate determinations. Values of the same column followed by different letters are significantly different at (p≤0.05). Where “IZ:Inhibition zone, SD: Standard deviation”.