Table 2 Quality parameters of fresh and osmotically dehydrated dried samples.
Property | Drying methods | ||
|---|---|---|---|
VOD-HA-RFD | VOD-HAD | Fresh | |
Moisture content (% wb) | 9.1 ± 0.5a | 9.6 ± 0.3a | 84 ± 1b |
Protein (% wb) | 3.01 ± 0.10b | 3.22 ± 0.11b | 1.34 ± 0.08a |
Total sugar (% wb) | 71 ± 1b | 70 ± 2b | 10 ± 1a |
Dietary fiber (% wb) | 17 ± 1b | 17 ± 1b | 7.2 ± 0.9a |
L* | 31 ± 0b | 27 ± 2a | 57 ± 3c |
a* | 13 ± 1b | 10 ± 0a | 13 ± 1b |
b* | 19 ± 1b | 13 ± 2a | 53 ± 5c |
ΔE | 42 ± 1a | 50 ± 1b | - |
Total phenolic content (mg GAE/100 g dw) | 1496 ± 33c | 837 ± 9a | 948 ± 17b |
Total flavonoids content (mg rutin/100 g dw) | 415 ± 10c | 203 ± 6a | 397 ± 12b |
Antioxidant capacity (I%) | 90 ± 2c | 71 ± 1a | 77 ± 1b |