Table 1.
Treatment ± | Drying Kinetics | RMSE ‡ | R 2 | MC (g/100 g ww) |
aw | Color Coordinates ¥ | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | k | n | |||||||||||||
CD | VMD | L* | a* | b* | C* | H°* | ΔE | ||||||||
FD | - λ | - | - | - | - | - | - | 2.80 ± 0.09 c | 0.184 ± 0.001 c | 54.4 ± 0.3 a | 9.17 ± 0.12 ab | 20.9 ± 0.6 a | 22.8 ± 0.6 a | 66.3 ± 0.9 a | 7.1 ± 2.4 c |
CD 50 | 1 | 0.013 | 0.96 | 660 | - | 0.0049 | 0.9998 | 8.38 ± 0.07 a | 0.383 ± 0.007 a | 38.2 ± 2.3 b | 10.20 ± 1.27 a | 15.7 ± 3.3 ab | 18.7 ± 3.5 b | 56.7 ± 2.5 bc | 11.2 ± 3.5 b |
CD 60 | 1 | 0.011 | 1.04 | 540 | - | 0.0052 | 0.9997 | 6.76 ± 0.05 ab | 0.321 ± 0.001 ab | 41.0 ± 4.4 b | 12.10 ± 3.47 a | 18.5 ± 6.3 a | 22.3 ± 7.2 a | 56.5 ± 1.5 bc | 9.7 ± 3.4 c |
CD 70 | 1 | 0.013 | 1.08 | 420 | - | 0.0059 | 0.9997 | 5.19 ± 0.43 b | 0.282 ± 0.009 b | 36.7 ± 1.8 c | 8.02 ± 2.21 b | 13.1 ± 2.0 ab | 15.4 ± 2.9 c | 58.7 ± 3.1 b | 13.8 ± 2.7 b |
VMD 240 | 1 | 0.053 | 1.02 | - | 112 | 0.0089 | 0.9988 | 8.24 ± 0.29 a | 0.366 ± 0.030 a | 34.4 ± 2.5 d | 7.88 ± 2.03 b | 9.2 ± 3.1 b | 12.1 ± 3.7 d | 49.1 ± 2.3 d | 18.0 ± 4.0 a |
VMD 360 | 1 | 0.072 | 1.03 | - | 81 | 0.0142 | 0.9970 | 7.06 ± 0.58 a | 0.352 ± 0.070 a | 33.4 ± 0.7 d | 7.55 ± 0.91 b | 7.6 ± 0.5 c | 10.7 ± 1 e | 45.4 ± 1.4 d | 19.8 ± 0.9 a |
VMD 480 | 1 | 0.079 | 1.13 | - | 48 | 0.0098 | 0.9987 | 7.49 ± 0.09 a | 0.336 ± 0.012 a | 36.0 ± 1.3 c | 8.30 ± 0.39 b | 10.8 ± 2.1 b | 13.7 ± 1.9 cd | 52.2 ± 4.1 c | 15.6 ± 2.3 a |
CPD-VMFD | 0.086 | 0.259 | 0.729 | 180 | 30 | 0.0046 | 0.9595 | 6.39 ± 0.23 ab | 0.303 ± 0.016 ab | 39.7 ± 0.1 b | 8.94 ± 0.95 ab | 15.7 ± 0.2 ab | 18.0 ± 0.7 b | 60.3 ± 2.3 b | 9.7 ± 0.9 c |
± Freeze drying (FD), convective drying (CD) at 50 °C (CD 50), 60 °C (CD 60) and 70 °C (CD 70); vacuum-microwave drying (VMD) at 240 W (VMD 240), 360 W (VMD 360) and 480 W (VMD 480) and combined drying (CPD-VMFD). ¥ Mean values followed by different letter, within the same column, were significantly different (p < 0.05). ‡ RMSE: root mean square error.; λ “-“ means no data available of this parameters.