Table 2.
Relative values of water activity, dry matter content, rehydration and hygroscopic properties of dried apples pretreated with different methods, calculated in reference to control (untreated, dried) material.
| Pretreatment Method | Relative Difference in Comparison with Control Material [%] | ||||
|---|---|---|---|---|---|
| X | SSL | H72h | aw | DM [%] | |
| HPP | −2.13 RD | 9.14 RD | −5.51 RD | 4.82 RD | 0.45 NRD |
| US | −2.84 NRD | 0.4 NRD | 0.75 RD | −4.42 RD | −0.54 NRD |
| PEF | 28.57 RD | −6.76 RD | 0.84 NRD | −7.23 RD | 0.76 NRD |
RD indicates statistically significant difference, NRD indicates statistically non-significant difference in comparison with untreated dried material (Student’s t test, α = 0.05).