Table 4.
Mode of minimum inhibitory concentration (MIC) 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 | 1:16 | 1:32 | 1:64 | 1:64 |
| Enterococcus faecalis VAN B V 583 E | 1:16 | 1:16 | 1:32 | 1:32 | |
| Listeria monocytogenes ATCC 7644 | 1:16 | 1:16 | 1:32 | 1:128 | |
| Gram-negative | Pseudomonas aeruginosa ATCC 27853 | 1:8 | 1:8 | 1:16 | 1:16 |
| Escherichia coli ATCC 15325 | 1:8 | 1:8 | 1:16 | 1:32 | |
| Salmonella enterica ser. Typhimurium ATCC 14028 | 1:8 | 1:8 | 1:16 | 1:16 |