Parameters | Control | 10% Glycerol | 15% Glycerol | 10% Sorbitol | 15% Sorbitol |
---|---|---|---|---|---|
Value of aw during drying | |||||
- 0 h | 0.991 ± 0.00b,1,2 | 0.993 ± 0.00a | 0.982 ± 0.00d | 0.987 ± 0.00c | 0.990 ± 0.00b |
- 1 h | 0.973 ± 0.02a | 0.895 ± 0.01b | 0.795 ± 0.01c | 0.934 ± 0.04a | 0.946 ± 0.01a |
- 2 h | 0.881± 0.03a | 0.791 ± 0.05ab | 0.702 ± 0.10b | 0.811 ± 0.10ab | 0.808 ± 0.03b |
- 3 h | 0.854 ± 0.03a | 0.748 ± 0.01b | 0.630 ± 0.07c | 0.787 ± 0.01ab | 0.759 ± 0.04b |
Drying yield (%) | 42.25 ± 0.81b | 45.81 ± 0.91a | 48.05 ± 0.47a | 47.88 ± 0.76a | 48.46 ± 0.85a |
Moisture (% wet basis) | 36.54 ± 1.58a | 30.24 ± 1.32b | 24.96 ± 2.00c | 27.11 ± 0.59bc | 25.45 ± 2.41c |
Color | |||||
- Lightness (CIE L*) | 24.54 ± 0.10b | 26.83 ± 0.91ab | 28.24 ± 2.20a | 27.84 ± 0.38a | 28.18 ± 0.66a |
- Redness (CIE a*) | 9.37 ± 0.30c | 10.00 ± 0.38c | 11.49 ± 0.22a | 10.35 ± 0.84bc | 11.18 ± 0.01a |
- Yellowness (CIE b*) | 12.51 ± 0.04c | 13.47 ± 0.81bc | 15.99 ± 0.66a | 14.15 ± 0.90bc | 14.71 ± 0.68ab |
Texture Profile Analysis | |||||
- Hardness (N) | 35.34 ± 0.06a | 33.97 ± 2.99b | 29.12 ± 0.49b | 36.00 ± 3.17a | 38.69 ± 4.17a |
- Cohesiveness (ratio) | 0.68 ± 0.02a | 0.70 ± 0.02a | 0.70 ± 0.01a | 0.62 ± 0.03b | 0.59 ± 0.0 3b |
- Gumminess (N) | 24.47 ± 1.60a | 23.63 ± 1.93a | 20.38 ± 2.09b | 22.23 ± 2.54a | 23.57 ± 5.38a |
- Springiness (ratio) | 0.78 ± 0.05b | 0.81 ± 0.02a | 0.81 ± 0.02a | 0.78 ± 0.02b | 0.74 ± 0.01c |
- Chewiness (N) | 19.51 ± 0.35a | 19.15 ± 1.56a | 16.61 ± 0.91b | 18.78 ± 2.28a | 18.90 ± 5.24a |
Shear force (N) | 36.69 ± 0.25a | 31.72 ± 0.46bc | 25.39 ± 0.83d | 30.68 ± 0.35c | 34.70 ± 0.50ab |
Sensory attributes | |||||
- Color | 4.27 ± 1.14b | 4.53 ± 1.17ab | 5.00 ± 1.16a | 4.67 ± 1.12ab | 4.53 ± 1.17ab |
- Appearance | 4.17 ± 1.11a | 4.67 ± 1.29a | 4.70 ± 1.20a | 4.63 ± 1.19a | 4.63 ± 1.03a |
- Texture | 3.70 ± 1.21a | 4.30 ± 1.20a | 4.40 ± 1.23a | 3.83 ± 1.31a | 4.27 ± 1.10a |
- Flavor | 4.03 ± 1.15b | 4.57 ± 1.13ab | 4.77 ± 1.45a | 4.23 ± 1.34ab | 4.30 ± 1.21 ab |
- Overall acceptability | 4.13 ± 1.16b | 4.80 ± 1.15a | 4.80 ± 1.06a | 4.43 ± 1.17ab | 4.63 ± 1.00ab |