Table 1.
Antimicrobial Activity of Sorrel on E. coli O157:H7 from Food samples
| |
|
Zones of inhibition (mm) |
||
|---|---|---|---|---|
| E. coli O157:H7 isolates | Source | 2.5% sorrel | 5% sorrel | 10% sorrel |
| MF-AAMU-1 | Ground beef | 7.59±0.2e | 9.33±0.1e | 11.51±0.4e |
| MF-AAMU-2 | Ground beef | 8.33±0.1d | 10.46±0.1d | 12.52±0.0d |
| MF-AAMU-3 | Ground beef | 7.40±0.1e | 11.59±0.0c | 12.41±0.1d |
| MF-AAMU-4 | Ground beef | 8.42±0.1d | 10.07±0.4d | 11.54±0.3e |
| MF-AAMU-5 | Ground beef | 7.26±0.1e | 8.83±0.1d | 10.56±0.1d |
| MF-AAMU-7 | Ground beef | 8.64±0.0d | 10.37±0.0d | 11.78±0.0e |
| MF-AAMU-119 | Vegetable pack | 8.62±0.1d | 10.63±0.0d | 12.13±0.1d |
| MF-AAMU-10 | Ground beef | 7.76±0.0e | 9.7±0.07e | 12.67±0.0d |
| MF-AAMU-11 | Ground beef | 10.02±0.0b | 11.25±0.1c | 15.37±0.6a |
| MF-AAMU-12 | Ground beef | 10.02±0.0b | 12.2±0.0b | 14.59±0.1b |
| MF-AAMU-13 | Ground beef | 9.84±0.1c | 11.9±0.01c | 12.83±0.2d |
| MF-AAMU-14 | Ground beef | 7.52±0.1e | 10.2±0.1d | 12.42±0.1d |
| MF-AAMU-15 | Ground beef | 8.31±0.0 d | 9.83±0.0e | 11.78±0.0e |
| MF-AAMU-120 | Vegetable pack | 7.45±0.1e | 9.65±0.0e | 11.55±0.1e |
| MF-AAMU-17 | Ground beef | 9.75±0.1c | 11.3±0.1c | 13.5±0.0c |
| MF-AAMU-121 | Vegetable pack | 10.29±0.0b | 11.42±0.0c | 12.44±0.0d |
| MF-AAMU-22 | Ground beef | 9.3±0.0c | 10.43±0.0d | 12.36±0.1d |
| MF-AAMU-23 | Ground beef | 7.47±0.2e | 11.2±0.0c | 13.93±0.0 c |
| MF-AAMU-24 | Ground beef | 7.13±0.0e | 9.02±0.0e | 11.49±0.1e |
| MF-AAMU-26 | Ground beef | 10.35±0.1b | 11.23±0.1c | 12.49±0.1d |
| MF-AAMU-31 | Ground beef | 9.59±0.2c | 11.13±0.0c | 13.05±0.2c |
| MF-AAMU-34 | Ground beef | 8.68±0.2d | 13.42±0.1c | 14.4±0.1b |
| MF-AAMU-35 | Ground beef | 9.63±0.1c | 10.78±0.0d | 11.35±0.2e |
| MF-AAMU-40 | Ground beef | 7.98±0.0e | 9.50±0.2e | 12.21±0.1d |
| MF-AAMU-46 | Ground beef | 8.56±0.1d | 10.22±0.1d | 12.63±0.1d |
| MF-AAMU-47 | Ground beef | 7.98±0.0e | 9.50±0.2e | 12.21±0.1d |
| MF-AAMU-52 | Ground beef | 9.43±0.2c | 12.4±0.1b | 14.65±0.0b |
| MF-AAMU-63 | Ground beef | 9.76±0.0c | 10.46±0.0d | 11.36±0.0e |
| MF-AAMU-66 | Ground beef | 8.78±0.0d | 9.52±0.1e | 11.04±0.0e |
| MF-AAMU-67 | Ground beef | 9.80±0.0c | 11.72±0.1c | 12.45±0.0d |
| MF-AAMU-72 | Ground beef | 7.97±0.0e | 9.91±0.0e | 11.02±0.0e |
| MF-AAMU-73 | Ground beef | 7.78±0.0e | 9.12±0.0e | 11.89±0.0e |
| MF-AAMU-79 | Ground beef | 8.26±0.0d | 9.23±0.0e | 12.14±0.0d |
| MF-AAMU-84 | Spinach | 9.74±0.1c | 11.44±0.1c | 13.64±0.0c |
Food samples included ground beef, spinach, and vegetable packs containing lettuce, carrot, and cabbage obtained from local grocery stores. Data are mean±SEM values.
abcde: Different letters denote differences in zones of inhibition for 2.5%, 5%, and 10% Sorrel.