Table 3.
MIC and MBC* values (µg/mL) of essential oils from Origanum vulgare L. subsp. vulgare L. at full bloom and MIC of reference antibiotic.
| Bacterial strain | Oregano essential oil samples | G | |||
|---|---|---|---|---|---|
| Single row | Binate row | ||||
| Fresh (1) | Dried (2) | Fresh (3) | Dried (4) | ||
|
Bacillus cereus ATCC 11778 |
50 (100) | 50 | 50 (100) | 50 | 1.56 |
|
Bacillus subtilis ATCC 6633 |
50 (100) | 50 | 50 (100) | 50 | 1.56 |
|
Staphylococcus aureus ATCC 2592 |
50 (100) | 50 (100) | 100 | 50 (100) | 3.12 |
|
Staphylococcus epidermidis ATCC 12228 |
50 (100) | 50 (100) | 100 | 50 (100) | 6.25 |
|
Streptococcus faecalis ATTC 29212 |
100 | 50 (100) | 100 | 50 (100) | >100 |
|
Escherichia coli ATCC 25922 |
100 | 50 (100) | 100 | 50 (100) | 3.12 |
|
Proteus mirabilis ATCC 25933 |
100 | 100 | >100 | 100 | 100 |
|
Proteus vulgaris ATCC 13315 |
>100 | 100 | >100 | 100 | 100 |
|
Pseudomonas aeruginosa ATCC 27853 |
>100 | >100 | >100 | >100 | 12.5 |
|
Salmonella typhi Ty2 ATCC 19430 |
>100 | >100 | >100 | >100 | >100 |
* MBC values are reported in brackets when different from MIC values; G: Gentamycin.