Table 5.
Mode of minimum bactericidal concentration (MBC) of lavender essential oils (EOs) against the tested ATCC microorganisms.
| Microorganisms | 1st Year EO | 2nd Year EO | 3rd Year EO | 4th Year EO | |
|---|---|---|---|---|---|
| Gram-positive | Staphylococcus aureus ATCC 6538 | 1:8 | 1:16 | 1:32 | 1:32 |
| Enterococcus faecalis VAN B V 583 E | 1:8 | 1:8 | 1:16 | 1:16 | |
| Listeria monocytogenes ATCC 7644 | 1:8 | 1:8 | 1:16 | 1:64 | |
| Gram-negative | Pseudomonas aeruginosa ATCC 27853 | >1:8 | >1:8 | 1:8 | 1:8 |
| Escherichia coli ATCC 15325 | >1:8 | >1:8 | 1:8 | 1:16 | |
| Salmonella enterica ser. Typhimurium ATCC 14028 | 1:8 | 1:8 | 1:8 | 1:8 |