首页|Effect of ultrasound on mass transfer kinetics and phenolic compounds of apple cubes during osmotic dehydration
Effect of ultrasound on mass transfer kinetics and phenolic compounds of apple cubes during osmotic dehydration
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NSTL
Elsevier
This study investigated the impacts of ultrasound-assisted osmotic dehydration (UOD) with different frequency (40 kHz, 80 kHz, 40 + 80 kHz) and intensity (25 W/L, 50 W/L, 75 W/L) on the kinetics of mass transfer, phenolic losses and the antioxidant properties of apple cubes (8 mm). The mass transfer efficiency of solid gain (SG) was greater under dual-frequency (beta = 0.413) than 40 kHz (beta = 0.707) and 80 kHz (beta = 0.793) under the same intensity. Moreover, the mass transfer efficiency of SG under 75 W/L 40 kHz UOD was higher than that of 25 W/L and 50 W/L UOD based on beta values. Notably, the loss of phenolic content under 75 W/L UOD (18.9 %) was substantially higher than that of the 25 W/L UOD treatment (1.2-1.8 %). A UOD treatment of 50 W/L and 40 + 80 kHz is recommended to optimize mass transfer efficiency and phenolic retention of dehydrated apple cubes.
NSTL
Elsevier
