Table 2 Quality parameters of fresh and osmotically dehydrated dried samples.

From: Combined vacuum osmotic dehydration by pomegranate juice concentrate and hot-air assisted radiofrequency drying to produce fortified orange slices

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

  1. The different letters (a, b, etc.) in each line show statistical difference (p < 0.05).