Table 4.
The minimum inhibitory concentrations (mg/mL) of the methanolic extract, n-hexane and aqueous fractions and standard antibiotics against bacterial isolates.
| Bacterial Isolates | PBM | N-HEX | ACQ | TET | PEN | STREP | AMP |
|---|---|---|---|---|---|---|---|
| B. anthracis (LIO) | 1.25 | 2.50 | 2.50 | 1.00 | >1 | 0.25 | 0.128 |
| P. aeruginosa (NCIB 950) | 2.50 | 2.50 | 10.00 | >1.00 | >1 | >1 | >0.128 |
| B. stearothermophillus (NCIB 8222) | 1.25 | 1.25 | 2.50 | 0.13 | 1.00 | 0.06 | 0.008 |
| B. cereus (NCIB 6349) | 2.50 | 1.25 | 2.50 | 0.25 | 0.50 | 0.06 | 0.064 |
| B. polymyxa (LIO) | 1.25 | 2.50 | 2.50 | 0.13 | 0.50 | 0.13 | 0.064 |
| C. pyogenes (LIO) | 1.25 | 2.50 | 2.50 | 0.13 | >1 | 0.13 | 0.016 |
| P. fluorescence (NCIB 3756) | 0.63 | 2.50 | 2.50 | >1 | >1 | 0.03 | >0.128 |
| C. sporogenes (NCIB 532) | 1.25 | 2.50 | 2.50 | 0.25 | >1 | 0.06 | 0.016 |
| M. luteus (NCIB 196) | 0.63 | 0.63 | 0.63 | 0.13 | >1 | 0.03 | 0.002 |
| E. faecalis (NCIB 775) | 5.00 | 5.00 | 10.00 | 0.13 | 0.06 | 0.03 | 0.004 |
| S. aureus (NCIB 8588) | 2.50 | 5.00 | 10.00 | >1 | 0.50 | 0.13 | >0.128 |
| B. subtilis (NCIB 3610) | 5.00 | 10.00 | 10.00 | 0.25 | 0.50 | 0.25 | 0.064 |
| K. pneumoniae (NCIB 418) | 5.00 | 10.00 | 10.00 | 0.50 | >1 | >1 | 0.032 |
| E. coli (NCIB 86) | 2.50 | 10.00 | 10.00 | 0.13 | >1 | 0.25 | 0.128 |
| P. vulgaris (LIO) | 0.63 | 1.25 | 2.50 | 0.50 | >1 | 0.50 | 0.016 |
Key: LIO = Locally Isolated Organism, NCIB = National Collection of Industrial Bacteriology, PBM = P. biglobosa extract, N-HEX = n-hexane fraction, ACQ = aqueous fraction, TET = Tetracycline; PEN = Penicillin G, STREP = Streptomycin, AMP = Ampicillin.