2.4. Osmotic dehydration kinetics
Experimental dehydration kinetics curves were represented as the percentage of water loss (%ML) and solids gain (%SG) calculated using Eqs. (1) and (2), respectively, versus time. On the other hand, an unsteady state diffusion model based on Fick’s second law was used to represent the osmotic dehydration kinetics of blueberries (Bui et al., 2009), by supposing spherical sample, negligible shrinkage and constant diffusion coefficients. From this mathematical model, the residual moisture (MR) and the residual solids gain (SR) ratios versus time (t) are expressed as ( Crank, 1970):
2.4. Osmotic dehydration kinetics
Experimental dehydration kinetics curves were represented as the percentage of water loss (%ML) and solids gain (%SG) calculated using Eqs. (1) and (2), respectively, versus time. On the other hand, an unsteady state diffusion model based on Fick’s second law was used to represent the osmotic dehydration kinetics of blueberries (Bui et al., 2009), by supposing spherical sample, negligible shrinkage and constant diffusion coefficients. From this mathematical model, the residual moisture (MR) and the residual solids gain (SR) ratios versus time (t) are expressed as ( Crank, 1970):
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