Table 6.
Antimicrobial activity of different fractions of column chromatography of hydroalcoholic leaves extract of R. fruticosusagainst E. coli, H.influenzae, E.faecalisand S. aureus (diameter in mm).
| Fraction nos. | Conc. (μg\ml) | E. coli | H. influrnza | E. faecalis | S. aureus |
|---|---|---|---|---|---|
| 1 | 250 | nd | nd | nd | nd |
| 500 | nd | nd | 6 ± 0.22 | nd | |
| 1000 | nd | nd | 8 ± 0.70 | nd | |
| 2000 | 6 ± 0.15 | nd | nd | nd | |
| Ciprofloxacin | 250 | 22 ± 0.12 | 25 ± 0.17 | 28 ± 0.12 | 25 ± 0.19 |
| 2 | 250 | 6 ± 0.17 | 6 ± 0.10 | nd | 6 ± 0.22 |
| 500 | nd | nd | nd | 6 ± 0.10 | |
| 1000 | nd | nd | nd | 7 ± 0.85 | |
| 2000 | nd | 6 ± 0.15 | nd | 7 ± 0.98 | |
| Ciprofloxacin | 250 | 20 ± 0.44 | 25 ± 0.10 | 29 ± 0.16 | 27 ± 0.71 |
| 3 | 250 | 6 ± 0.54 | nd | 13 ± 0.19 | 6 ± 0.53 |
| 500 | nd | nd | 17 ± 0.55 | 7 ± 0.34 | |
| 1000 | nd | nd | 18 ± 0.29 | 8 ± 0.20 | |
| 2000 | nd | nd | 20 ± 0.09 | 8 ± 0.32 | |
| Ciprofloxacin | 500 | 20 ± 0.23 | 25 ± 0.18 | 26 ± 0.07 | 24 ± 0.18 |
| 4 | 250 | nd | 6 ± 0.19 | 16 ± 0.41 | 7 ± 0.30 |
| 500 | nd | 6 ± 0.31 | 19 ± 0.90 | 8 ± 0.12 | |
| 1000 | 6 ± 0.10 | 6 ± 0.42 | 20 ± 0.13 | 10 ± 0.11 | |
| 2000 | 6 ± 0.51 | 6 ± 0.92 | 16 ± 0.5 | 9 ± 0.15 | |
| Ciprofloxacin | 250 | 25 ± 0.23 | 29 ± 0.11 | 24 ± 0.08 | 26 ± 0.10 |
| DMSO | 0 | 0 | 0 | 0 |
nd = not detectable.