Table 2.
Physicochemical and mechanical properties of WPC films incorporated with NAT or nanoemulsions of α-TOC, or both. F0: Film without active compounds (Control film); F1: 2% α-TOC – 0 ppm NAT; F2: 0% α-TOC – 300 ppm NAT; F3: 2% α-TOC – 300 ppm NAT.
Film |
Thickness |
Moisture |
Solubility in |
TS |
EB |
EM |
---|---|---|---|---|---|---|
(mm) |
content (%) |
water (%) |
(MPa) |
(%) |
(MPa) |
|
n | 10 | 3 | 3 | 10 | 10 | 10 |
F0 | 0.122 ± 0.017a | 28.3 ± 2.3a | 58.9 ± 0.7a | 10.8 ± 0.6a | 29.4 ± 10.2a | 2.4 ± 0.4a |
F1 | 0.119 ± 0.037a | 28.3 ± 2.0a | 55.4 ± 1.1b | 3.3 ± 0.6b | 48.6 ± 14.9b | 0.8 ± 0.2b |
F2 | 0.124 ± 0.010a | 31.3 ± 5.7b | 58.8 ± 0.8a | 6.4 ± 0.9c | 45.6 ± 9.2b | 1.5 ± 0.3c |
F3 | 0.139 ± 0.020a | 29.5 ± 3.2a | 55.3 ± 1.5b | 5.9 ± 0.7c | 46.4 ± 11.5b | 1.3 ± 0.2c |
Mean values ± standard deviation. Different letters in the same column indicate significant differences (p < 0.05) among the average values obtained by application of Duncans test. TS: Tensile strength; EB: Elongation at break; EM: Elastic modulus.