Table 2.
Percentage of material released at 260 nm and 280 nm into the extracellular medium of S. enterica ser. Typhimurium cells treated with Lippia graveolens essential oil at MIC.
| Wavelength | Time (min) | Released Material (%) | |
|---|---|---|---|
| Control |
Lippia graveolens (0.4 mg/mL) |
||
| 260 nm | 0 30 60 90 120 |
0.00 ± 0.00 a 0.00 ± 0.00 a 0.01 ± 0.04 a 0.01 ± 0.04 a 0.00 ± 0.00 a |
0.00 ± 0.00 a 3.40 ± 1.17 b 7.37 ± 2.80 b 9.24 ± 3.56 b 11.10 ± 4.32 b |
| 280 nm | 0 30 60 90 120 |
0.00 ± 0.00 a 0.11 ± 0.13 a 0.40 ± 0.20 a 0.30 ± 0.19 a 0.11 ± 0.13 a |
0.00 ± 0.00 a 1.80 ± 0.49 ab 4.50 ± 1.62 b 7.50 ± 2.85 b 9.20 ± 3.55 b |
Means ± standard deviations. Those in the same row with no letters in common are significantly different (p < 0.05).