Table 2.
The color of the dried apples obtained by the convective method with non-dehumidified air (A55, A70, A85), dehumidified air (A55DA, A70DA, A85DA), and dehumidified air with ultrasound pretreatment (A55DAUS60, A70DAUS60, A85DAUS60); the same letters (a, b, etc.) in the columns represent homogeneous groups in statistical terms (α = 0.05).
| Sample | L* | a* | b* | BI | ΔE |
|---|---|---|---|---|---|
| A55 | 76.7 ± 3.3 abc | 1.5 ± 1.9 cd | 33.6 ± 4.2 b | 57.5 ± 11.3 d | 9.9 |
| A55DA | 82.8 ± 2.5 c | −2.3 ± 0.3 a | 29.5 ± 3.1 ab | 40.8 ± 4.9 ab | 8.6 |
| A55DAUS60 | 69.6 ± 8.5 a | −0.4 ± 1.0 b | 28.1 ± 4.2 ab | 49.8 ± 6.5 bcd | 8.8 |
| A70 | 78.0 ± 3.8 bc | −0.2 ± 1.2 b | 29.0 ± 4.9 ab | 45.1 ± 9.1 abc | 5.4 |
| A70DA | 78.6 ± 4.0 c | 0.0 ± 0.9 bc | 32.4 ± 4.3 b | 51.7 ± 8.8 cd | 8.9 |
| A70DAUS60 | 76.8 ± 3.4 abc | −0.2 ± 0.6 b | 29.3 ± 2.3 ab | 46.4 ± 3.8 abc | 5.7 |
| A85 | 75.5 ± 3.4 abc | 2.4 ± 0.3 d | 29.3 ± 2.6 ab | 50.3 ± 4.7 bcd | 6.1 |
| A85DA | 79.7 ± 2.5 c | 0.6 ± 1.8 bc | 25.9 ± 2.1 a | 38.9 ± 4.2 a | 3.3 |
| A85DAUS60 | 70.5 ± 10.4 ab | −0.8 ± 0.8 ab | 26.2 ± 5.9 a | 44.1 ± 7.7 abc | 7.3 |