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Different preparation conditions and main properties of bio-based films prepared from apple pomace, using 1% (w/v) citric acid solution at 70 °C.
| Washing Step | Glycerol (%) | Particle Size 1 (mm) | Thickness (mm) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|---|
| yes | 7 | ~0.08 | 0.11 ± 0.01 | 16.49 ± 2.54 | 10.77 ± 3.19 |
| no | 7 | ~0.08 | 0.11 ± 0.01 | 3.27 ± 0.31 | 55.41 ± 5.38 |
| no | 0 | ~0.08 | 0.09 ± 0.00 | 4.20 ± 0.70 | 37.39 ± 10.38 |
1 Apple pomace particle size used for preparation of the films.
