Table 4.
Results of the antimicrobial test of the Fractions and isolated compounds from F. exasperata
| Zones of inhibition (mm) | |||||||||
| Test organisms | Hex. | EtOAc | BuOH | Aq | 1 | 3 | Strept. | Acrifl. | Blank |
| E. coli | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.0 | NT | 0.0 |
| NCTC 10418 | |||||||||
| S. aureus | 6.3 | 6.0 | 6.0 | 0.5 | 1.5 | 2.0 | 17.0 | NT | 0.0 |
| NCTC 6571 | |||||||||
| Ps. earuginosa ATCC | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | NT | 0.0 |
| 10145 | |||||||||
| B. subtilis | 6.0 | 5.0 | 6.0 | 0.3 | 1.2 | 2.5 | 17.0 | NT | 0.0 |
| NCTC 8236 | |||||||||
| C.pseudotropicalis. | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | NT | 7.8 | 0.0 |
| NCYC 6 | |||||||||
Key:- Test concentration for each fraction =20 mg/ml. NT= Not tested, Hex. =hexane fraction, EtOAc = ethyl acetate fraction, n-BuOH= butanol fraction, Aq.= aqueous fraction, Strept.= streptomycin, Acrif =acriflavine, Aq.Me = aqueous methanol, 1 apigenin C-glucoside, 2 =quercetin rhamnoside.