Table 4.
Inhibition zones (mm) of various solvent extracts of the bark of S. guineense
| Solvents | S. aureus | S. typhimurium | K. pneumoniae | E. coli |
|---|---|---|---|---|
| Chloroform | - | - | - | - |
| Ethyl acetate | 14.24± 0.60aC | 12.72 ± 2.36aB | 15.60 ±1.38aC | 8.49 ± 0.38aA |
| Water | 22.24 ± 1.30bC | 23.87 ± 0.21bC | 16.64 ± 0.92abB | 8.98± 0.95aA |
| Acetone | 25.39 ± 0.80cC | 23.32 ± 0.52bC | 18.26 ± 0.90bB | 11.54 ± 0.98bA |
| Ethanol | 23.35 ±1.84bcB | 21.76 ± 0.23bB | 24.39 ± 0.60cB | 8.49 ± 0.26aA |
| Gentamicin 10 μg | 24.08 ± 1.42cA | 26.88 ± 1.08cB | 29.06 ± 1.41dC | 25.63 ± 0.84cA |
The values are expressed as mean ± SD from triplicate experiments. Means with the same letter in a column (lower case) and in a raw (upper case) were not significantly different at P > 0.05