Table 4.
Antioxidant activity (β-carotene bleaching test) and antibacterial properties of bilayer films.
| Properties | Bilayer Control Films | Bilayer Films (with Licorice Essential Oil) |
p-Value | |
|---|---|---|---|---|
| β-carotene bleaching test | % Inhibition | 39.86 ± 0.83 | 91.89 ± 1.07 | <0.001 * |
| Inhibition zones (mm) |
E. faecalis ATCC 29212 |
6.00 ± 0.00 (−) | 7.02 ± 0.56 (+) | 0.087 |
|
L. monocytogenes LMG 16779 |
6.00 ± 0.00 (−) | 6.84 ± 0.48 (+) | 0.094 | |
Results expressed as mean ± SD; (−) bacterial growth on the top of the films; (+) bacterial cells retraction at the contact area and clear inhibition zone; * indicates a significant result (p-value < 0.05).