In the experiments made to study the process of osmotic dehydration followed by air-drying, the samples were kept in the osmotic solution for 3.0 h. After removal from the solution, the dehydrated cylinders of each group were drained, blotted with absorbent paper to remove the excess solution, and transferred to the fixed bed air-dryer. The air-dryer used in the experiments was built in wood and covered with aluminum foil, having height of 1.3 m and width and length of 0.34 m. Air is injected at the base of the dryer through a 3.5 CV blower at a 2.0 m/s. Before entering the dryer the air is heated by electrical resistances with 2250 W, and relative humidity is controlled at 18%. Several works in banana dehydration by air-drying have been done and most of them have shown that at 60 °C the diffusion coefficient is maximum and can be considered the optimum point to dry bananas without compromising the product quality (Demirel and Turhan, 2003 and Karim and Hawlader, 2005). Each group sample was set in one dryer shelf and kept drying for 8 h. Every 15 min the bananas were weighted in order to calculate its moisture content by mass balance. After the end of the air-drying process, all cylinders of each group had their weight, moisture and soluble solids content (°Brix) measured individually.