Table 1.
Thickness, mechanical properties, and thermal properties of banana starch films incorporated with banana peel extract at different concentrations.
| BSF with Banana Peel Extract | Thickness | Tensile Strength (TS) | Elongation at Break (EAB) | Thermal Properties | |
|---|---|---|---|---|---|
| (%, w/v) | (mm) | (MPa) | (%) | Tm (°C) | ΔH (J/g) |
| Control (0) | 0.030 ± 0.004 b | 31.20 ± 0.54 b | 15.63 ± 2.66 b | 95.50 ± 2.89 b | 273.90 ± 8.32 a |
| 1 | 0.048 ± 0.004 a | 4.43 ± 0.69 d | 9.66 ± 2.09 b | 89.83 ± 0.00 c | 219.70 ± 3.53 c |
| 3 | 0.048 ± 0.004 a | 5.28 ± 0.22 c | 11.34 ± 0.49 b | 97.61 ± 0.10 ab | 263.60 ± 3.17 b |
| 5 | 0.047 ± 0.003 a | 4.48 ± 0.11 d | 12.16 ± 0.93 b | 98.50 ± 0.00 a | 192.30 ± 4.83 d |
| PVC | 0.010 ± 0.00 c | 44.10 ± 0.28 a | 238.75 ± 22.30 a | ND * | ND |
Different superscripts (a, b, c, d, ab) in each column are significantly different (p < 0.05). BSF: banana starch film; PVC: polyvinyl chloride; Tm: melting temperature; ΔH: enthalpy; ND; not determine. Values are given as mean ± SD from triplicate determinations.