Table 1.
Antimicrobial minimal inhibition concentration (MIC) values (µg/mL) of the tested samples.
| Sample Name | Microbial Organism | |||
|---|---|---|---|---|
| MRSA | S. aureus | E. coli | C. albicans | |
| myristic acid (1) | >1000 | >1000 | >1000 | >1000 |
| stigmasterol (2) | >1000 | 62.50 | 15.63 | >1000 |
| sesamin (3) | >1000 | 500 | >1000 | >1000 |
| 8- acetonyldihydrochelerythrine (4) | 31.25 | 15.63 | 15.63 | 62.50 |
| arnottianamide (5) | >1000 | >1000 | >1000 | >1000 |
| 10-methoxycanthin-6-one (6) | 3.91 | 1.95 | 3.91 | 7.81 |
| canthin-6-one (7) | 0.98 | 0.49 | 1.95 | 3.91 |
| 8-oxochelerythrine (8) | 62.50 | 7.81 | 3.91 | 15.63 |
| Z. paracanthum root bark extract | 3.91 | 0.98 | 1.95 | 7.81 |
| Omacilin | 0.98 | 0.49 | 0.98 | - |
| Fluconazole | - | - | - | 1.95 |
MIC—Minimal inhibition concentration. MRSA—methicillin resistant Staphylococcus aureus, Escherichia coli (ATCC 25922), Staphylococcus aureus (ATCC 29213) and Candida albicans (ATCC 10231). MIC values for canthin- 6- one (7) against MRSA and S. aureus were similar to omacilin (positive control).