Table 1.
Antimicrobial activity of extracts of Polygonum aviculare.
| No. | Organism | Diameter of zone of inhibition (mm) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stem extracts |
Leaf extracts |
Antibiotics |
||||||||||
| WE | AE | CL | EE | WE | AE | CL | EE | Ct | Ch | St | ||
| 1 | Escherichia coli | 22 | 18 | 27 | 23 | 9 | 7 | 11 | 7 | 31 | 17 | 16 |
| 2 | Proteus mirabilis | 24 | 15 | 28 | 23 | 8 | 5 | 8 | 4 | 29 | 19 | 18 |
| 3 | Pseudomonas aeruginosa | 21 | 19 | 23 | 22 | 7 | 5 | 9 | 5 | 28 | 20 | 19 |
| 4 | Salmonella typhi | 22 | 14 | 24 | 23 | 8 | 5 | 11 | 7 | 28 | 10 | 9 |
| 5 | Salmonella paratyphi | 23 | 15 | 23 | 20 | 5 | 7 | 12 | 8 | 29 | 12 | 11 |
| 6 | Shigella flexneri | 19 | 16 | 21 | 16 | 6 | 4 | 11 | 6 | 30 | 13 | 12 |
| 7 | Staphylococcus aureus | 22 | 17 | 24 | 21 | 7 | 2 | 10 | 8 | 26 | 4 | 8 |
| 8 | Bacillus subtilis | 25 | 20 | 25 | 22 | 5 | 5 | 8 | 7 | 34 | 24 | 23 |
| 9 | Streptococcus pyogenes | 18 | 15 | 23 | 20 | 4 | 8 | 12 | 9 | 31 | 8 | 7 |
| 10 | Aspergillus flavus | 14 | 10 | 17 | 13 | 6 | 6 | 10 | 9 | 22 | 9 | 8 |
| 11 | Aspergillus fumigatus | 15 | 8 | 18 | 14 | 3 | 4 | 9 | 8 | 19 | 7 | 6 |
| 12 | Aspergillus niger | 13 | 7 | 14 | 15 | 2 | 5 | 8 | 6 | 18 | 6 | 5 |
| 13 | Candida albicans | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Key: WE, water extract; AE, acetone extract; CL, chloroform extract; EE, ethanol extract; Ct, 10 mg/g cotrimoxazole; Ch, 10 mg/g chloramphenico; St, 10 mg/g streptomycin; and 0, no measurable zone.