TABLE 1.
Changes in mean C12:0 percentages and fluidity indices of cell membranes of Listeria monocytogenes due to exposure to LA (2.4 mg/ml), ML (5 μg/ml), and ML-LA during growth for 24 to 48 h
Treatment | Incubation time (h) | Change ind:
|
||
---|---|---|---|---|
Mean C12:0 %a | C15/C17 ratiob | (C12-C15)/C17 indexc | ||
Control | 24 | 0 | 1.00 | 1.00 |
48 | 0 | 1.07 | 1.07 | |
LA | 24 | 0 | 1.01 | 1.01 |
48 | 0 | 1.04 | 1.04 | |
ML | 24 | 3.63 | 0.97 | 1.05 |
48 | 4.36 | 1.05 | 1.15 | |
ML-LA | 24 | NG | NG | NG |
48 | 6.35 | 0.90 | 1.03 |
All four values for treatments with control and LA are not significantly different from each other. Both values for ML treatment are not significantly different (P > 0.05).
All values for treatment with control and LA and the value for ML treatment at 48 h incubation are not significantly different from each other. The value for control treatment at 24 h, that for ML treatment at 24 h, and that for ML-LA treatment at 48 h are not significantly different from each other (P > 0.05).
The values for control treatment at 48 h and ML treatment at 24 and 48 h are not significantly different from each other. Both values for control treatment, both for LA treatment, the value for ML treatment at 24 h, and that for ML-LA treatment at 48 h are not significantly different from each other (P > 0.05).
NG, no growth.