Table 1.
Dry matter content and water activity of 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 | Dry Matter Content [%] | Water Activity |
|---|---|---|
| A55 | 92.95 ± 0.18 c | 0.266 ± 0.011 d |
| A55DA | 91.54 ± 0.07 b | 0.307 ± 0.002 e |
| A55DAUS60 | 91.09 ± 0.06 a | 0.339 ± 0.006 f |
| A70 | 95.37 ± 0.18 e | 0.233 ± 0.000 c |
| A70DA | 93.10 ± 0.06 c | 0.277 ± 0.006 d |
| A70DAUS60 | 94.85 ± 0.12 d | 0.223 ± 0.004 bc |
| A85 | 98.88 ± 0.02 g | 0.200 ± 0.001 ab |
| A85DA | 96.74 ± 0.00 f | 0.195 ± 0.001 a |
| A85DAUS60 | 96.56 ± 0.06 f | 0.222 ± 0.012 bc |