Table 7.
Antimicrobial activity and MIC of the PEE and ME from S. bicolor determined using agar disc diffusion and MIC methods.
| Microorganism | PEE | ME | MICs of the standards | |||
|---|---|---|---|---|---|---|
| DD a M ± S.D. | MIC b | DD a M ± S.D. | MIC b | Gentamycin | Amphotericin B | |
| Staphylococcus aureus | 13.2 ± 0.44 | 550 | 18.3 ± 0.92 | 200 | 8 × 10−3 | NT |
| Staphylococcus epidermidis | 14.6 ± 1.17 | 650 | 16.8 ± 1.27 | 350 | 1 × 10−2 | NT |
| Streptococcus pyogens | 10.7 ± 0.56 | 1,000 | 14.3 ± 0.64 | 350 | 8 × 10−3 | NT |
| Escherichia coli | 9.1 ± 0.24 | 1,000 | 12.7 ± 1.84 | 400 | 8 × 10−3 | NT |
| Klebsiellapneumonia | 7.2 ± 1.76 | 1,000 | 9.58 ± 1.26 | 1000 | 1 × 10−2 | NT |
| Proteusvulgaris | 8.8 ± 0.77 | 1,000 | 9.3 ± 0.60 | 1000 | 1 × 10−2 | NT |
| Pseudomonas aeruginosa | 11.4 ± 0.54 | 900 | 11.4 ± 0.70 | 400 | 1 × 10−2 | NT |
| Shigellaboydii | 10.2 ± 1.28 | 1,000 | 13.6 ± 0.62 | 400 | 1 × 10−2 | NT |
| Candida albicans | 13.2 ± 0.43 | 400 | 16.4 ± 1.30 | 350 | NT | 1 × 10−3 |
| Candida glabrata | 7.2 ± 0.76 | 1,000 | 7.3 ± 1.40 | 1000 | NT | 1 × 10−3 |
| Candida krusei | 8.2 ± 0.93 | 1,000 | 8.5 ± 1.87 | 1000 | NT | 1 × 10−3 |
| Candida parapsilosis | 8.5 ± 0.36 | 1,000 | 8.5 ± 0.85 | 1000 | NT | 1 × 10−3 |
a DD, agar disc diffusion method. Diameter of the inhibition zone (mm) including the disc diameter of 6 mm; b MIC, minimum inhibitory concentration; values are given as µg/mL; NT, not tested; M ± S.D., mean of three experiments ± standard deviation.