The banana slices with Infrared pre dehydration dried slower during freeze-drying compared to the samples without pre dehydration, which was due to texture changes that occurred during the pre dehydration. Wang et al. (2007)compared the banana powder dehydrated by vacuum drying, freeze-drying and air-drying, the results showed that the preferred method for producing banana powder with the optimum aroma is FD, followed by vacuum drying and then air drying.