Materials
Cavendish bananas at color stage #6 were obtained from
a local supermarket. Prior to drying, the bananas were first
peeled and cut into 5 mm thick slices. Some sliced samples
were dipped in a solution containing 10 g/l ascorbic acid and
10 g/l citric acid for 1 min before any drying treatment, which
was adopted based on a practice used in the food industry. The
banana slices were dried using various methods including IR,
hot air, and freeze-drying. Banana initial moisture content was
73.0 g moisture/100 g wet weight.