Table 2.
Effects of different drying methods on drying characteristics and color parameters of Codonopsis.
| Parameters | ND | RMVD | RFVD | VD | VFID | HD | |
|---|---|---|---|---|---|---|---|
| Drying time (min) | 18 ± 0.13 b | 240 ± 0.00 a | 1220 ± 0.27 ac | 300 ± 0.01 b | 160 ± 0.04 ab | ||
| Deff (10−8 m2/s) | 3.95 ± 0.00 ab | 0.29 ± 0.01 c | 0.06 ± 0.01 ac | 0.26 ± 0.05 abc | 0.56 ± 0.11 d | ||
| Color | L* | 7.21 ± 0.14 a | 7.60 ± 0.20 a | 7.75 ± 0.01 ab | 7.33 ± 0.03 b | 7.13 ± 0.28 ab | 5.83 ± 0.35 b |
| a * | 4.62 ± 0.29 a | 4.65 ± 0.13 b | 4.24 ± 0.19 ab | 4.22 ± 0.20 b | 4.51 ± 0.23 a | 2.71 ± 0.14 ab | |
| b * | −0.67 ± 1.14 ab | −3.43 ± 0.18 a | −0.88 ± 1.08 ab | −2.53 ± 0.01 a | −1.88 ± 0.25 a | −0.55 ± 0.28 ab | |
| △E | 6.72 ± 0.18 b | 8.49 ± 0.07 ab | 6.98 ± 0.01 b | 8.46 ± 0.15 a | 6.10 ± 0.11 a | 6.01 ± 0.12 ab | |
Note: Data are expressed as means ± standard deviation of triplicate samples. The letters in the same column reveal significant differences (p < 0.05) according to the Duncan test.