Table 6.
Concentration (μg eq. Trolox/g sample) of 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) of the active multilayer films with and without cellulose nanocrystal (CNC) coatings in the open a closed system for 15 days.
| Sample | Day | Open System | Closed System |
|---|---|---|---|
| (μg eq. Trolox/g Sample) |
(μg eq. Trolox/g Sample) |
||
| Active monolayer | 1 | 17.44 ± 0.14 a | --- |
| 3 | 15.94 ± 0.10 b,A | 15.98 ± 0.19 a,A | |
| 8 | 14.28 ± 0.17 c,B | 14.42 ± 0.02 b,B | |
| 15 | 12.49 ± 0.08 d,C | 13.76 ± 0.12 c,D | |
| Active multilayer with CNC | 1 | 9.11 ± 0.09 e | --- |
| 3 | 7.74 ± 0.03 f,E | 8.14 ± 0.02 d,F | |
| 8 | 7.42 ± 0.01 f,G | 7.44 ± 0.01 e,G | |
| 15 | 6.25 ± 0.02 g,H | 7.04 ± 0.12 e,I | |
| Active multilayer without CNC | 1 | 12.66 ± 0.12 h | --- |
| 3 | 10.90 ± 0.02 i,J | 11.01 ± 0.06 f,J | |
| 8 | 9.67 ± 0.03 j,K | 10.07 ± 0.03 g,L | |
| 15 | 9.00 ± 0.09 k,M | 9.29 ± 0.04 h,M |
a–k: Different superscripts within the same column indicate significant differences among samples (p < 0.05). A–M: Different superscripts within the same row indicate significant differences among samples (p < 0.05).