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

ABSTRACT: In this study, vacuum osmotic dehydration (VOD) with pomegranate juice concentrate was applied to produce orange slices with high bioactive compounds. The optimum VOD process conditions were selected by response surface methodology (RSM) as 65° brix of pomegranate juice concentrate, 4:1 (g/g) pomegranate juice concentrate to orange slices, and 30 min of vacuum time to obtain a higher water loss of 40.52 ± 1.31%, solid gain of 21.57 ± 0.85%, and weight reduction of 18.60 ± 0.93%. After VOD, the osmotically dehydrated orange slices were dried by hot air-assisted radiofrequency drying (HA-RFD) and conventional hot air drying (HAD). The results demonstrated that HA-RFD increased the rate of drying with a 62% decrease in drying time compared to HAD. Bioactive compounds of dried samples were ass

SUBMITTER: Ismail M 

PROVIDER: S-EPMC12528487 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature