Table 3.
Antibacterial activity of the isolated compounds from Chrysophyllum albidum stem-bark.
| Test Samples /Standard | Zones of Inhibition (mm)* | ||||
|---|---|---|---|---|---|
| Conc.(mg/mL) | E. coli (ATCC 25922) | S. aureus (NCTC 6571) | Ps. aeruginosa (ATCC 10145) | B. subtilis (NCTC 8263) | |
| 1 | 20 | 0 | 0 | 0 | 0 |
| 2 | 20 | 5 | 0 | 0 | 5 |
| 3 | 20 | 0 | 0 | 0 | 0 |
| 4 | 20 | 0 | 4 | 0 | 9 |
| Streptomycin sulphate (Standard) | 1 | 17.5 | 18 | 3.5 | 18.5 |
| Solvent MeOH:H2O (1:1) | 0 | 0 | 0 | ||
MeOH: H2O (1:1) - The zones of inhibition recorded are less the diameter of the cup, which is 8 mm.
*
Represents the mean of three determinations.