Research Article
Antifungal Activity and Composition of Essential Oils of Conyza canadensis Herbs and Roots
Table 2
Antimicrobial activities of the essential oils of Conyza canadensis using agar disc diffusion method.a
| | Microorganisms | Essential oil | Antibiotics | | Herbs (8 μg) | Roots (8 μg) | Piperacillin/tazobactam (100/10 μg) | Fluconazole (25 μg) | Voriconazole (1 μg) |
| | Enterococcus faecalis | NA | NA | 25 | NT | ND | | Staphylococcus aureus | NA | NA | 30 | NT | ND | | Streptococcus pyogenes | NA | NA | 35 | NT | ND | | Escherichia coli | NA | NA | 25 | NT | ND | | Pseudomonas aeruginosa | NA | NA | 30 | NT | ND | | Candida albicans | 15 | 20 | NT | 30 | 40 | | Candida glabrata | 25 | 25 | NT | NA | NA | | Candida kefyr | 7 | 9 | NT | 50 | 50 | | Candida parapsilosis | 13 | 18 | NT | 28 | 30 | | Candida tropicalis | 15 | 18 | NT | 18 | 12 | | Cryptococcus neoformans | 40 | 32 | NT | 25 | 35 | | Rhodotorula glutinis | 13 | 18 | NT | 30 | 30 | | Trichophyton interdigitalis | 40 | 40 | NT | NA | > 40 | | Aspergillus fumigatus | NA | NA | NT | NA | 18 |
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aDiameter of inhibition zone (mm) including diameter of the paper disc (6 mm).
NA: not active.
NT: not tested.
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