| Types of extract | Aqueous extracts | Hydroethanolic extracts | ||
| Bacterial species | Leaves | Trunk bark | Leaves | Trunk bark |
| E. coli | 0.035* | 0.019* | 0.021* | 0.015* |
| S. typhi | 0.026* | 0.018* | 0.013* | 0.009* |