Table 4.
Activity of UV-treated date palm pit extracts against different microbial strains (bacteria and fungi).
| # | Extract | Inhibition Zone Diameter (mm) | ||
|---|---|---|---|---|
| Staphylococcus aureus (ATCC29213) | Escherichia coli (ATCC 25922) | Candida albicans (ATCC 66027) | ||
| 1 | Khalas (ethyl acetate) | 20 ± 1.0 b | 0 | 0 |
| 2 | Khalas (hexane) | 0 | 7 ± 0.45 b | 0 |
| 3 | Khalas (H2O: EtOH (1:1) | 12 ± 1.0 d | 7 ± 0.6 b | 0 |
| 4 | Khodari (ethyl acetate) | 22 ± 1.5 a | 11 ± 0.9 a | 0 |
| 5 | Khodari (hexane) | 17 ± 1.2 c | 12 ± 1.0 a | 0 |
| 6 | Khodari (H2O: EtOH (1:1) | 0 | 0 | 0 |
| 7 | Amikacin (30 μg) | 22 | 25 | - |
| 8 | Fluconazole (25 μg) | - | - | 29 |
Values are the mean ± standard error of three samples. The mean with different letters in a column differed significantly at p < 0.05. For standard amikacin (30 μg) was used for S. aureus and E. coli and inhibition zone size (22 mm and 25 mm respectively); fluconazole (25 μg) used for C. albicans (29 mm).