The results of the osmodehydrating process on kiwi disks using the different solutions are presented in Fig. 1 (a) and (b). At the beginning of the process, the WL evolution from tissue (Fig. 1 (a)) with the dehydrating time is fast with fructose, sucrose and glucose solutions. This fact is expected as these solutions contains, totally or partially, sugars of low molecular weight (the so-called fructose solution contains a 52% of a monomer). On the contrary, the dehydrating process is slower with the HMW sugars solution, but always keeps growing. At 24 h, the WL with the glucose solution has reached its highest value but it continues to increase for the other solutions. It must be remarked that the glucose solution is a less concentrated solution as 47 °Brix is the highest concentration that may be achieved, so the dehydrating rate is really very fast. Another thing to be mentioned is that the value of WL with sucrose solution (69 °Brix) is not far from reaching its maximum as its rate has started to decline and the value of WL at the equilibrium would be around 0.56, as estimated from a quick fit of data based on a macroscopic expression of dehydration rate with a first order kinetics (Panatagiotou, Karathanos, & Maroulis, 1998).
The results of the osmodehydrating process on kiwi disks using the different solutions are presented in Fig. 1 (a) and (b). At the beginning of the process, the WL evolution from tissue (Fig. 1 (a)) with the dehydrating time is fast with fructose, sucrose and glucose solutions. This fact is expected as these solutions contains, totally or partially, sugars of low molecular weight (the so-called fructose solution contains a 52% of a monomer). On the contrary, the dehydrating process is slower with the HMW sugars solution, but always keeps growing. At 24 h, the WL with the glucose solution has reached its highest value but it continues to increase for the other solutions. It must be remarked that the glucose solution is a less concentrated solution as 47 °Brix is the highest concentration that may be achieved, so the dehydrating rate is really very fast. Another thing to be mentioned is that the value of WL with sucrose solution (69 °Brix) is not far from reaching its maximum as its rate has started to decline and the value of WL at the equilibrium would be around 0.56, as estimated from a quick fit of data based on a macroscopic expression of dehydration rate with a first order kinetics (Panatagiotou, Karathanos, & Maroulis, 1998).
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