Drying methods | Hunter value | |||
---|---|---|---|---|
L* | a* | b* | ||
Control | 91.05±1.09 | 1.00±0.24abc | 8.07±0.45e | |
Sun-drying | 87.51±0.33bc | 0.84±0.07abc | 11.23±0.50bcd | |
Hot-air drying | 40 | 88.19±0.62abc | 0.82±0.06abc | 11.52±0.54abcd |
50 | 88.34±1.06abc | 0.81±0.04abc | 10.99±0.48cd | |
60 | 88.73±0.52abc | 0.72±0.05bc | 10.75±0.30d | |
Low temperature vacuum drying | 20 | 86.76±1.20c | 0.91±0.18abc | 12.49±0.05a |
25 | 90.25±1.00ab | 0.60±0.13c | 10.39±0.45d | |
30 | 90.34±0.07ab | 0.58±0.04c | 10.59±0.71d | |
Heat pump dehumidifying drying | 30 | 86.18±0.16c | 1.35±0.14a | 12.08±0.24abc |
40 | 86.22±1.21c | 1.31±0.06ab | 11.37±0.24abcd | |
50 | 89.27±0.70abc | 0.79±0.07abc | 10.86±0.37d | |
Freeze drying | 87.49±0.35bc | 1.05±0.30abc | 12.36±1.10ab |