The green banana peel was stripped off after the fruit (5 kg) was dipped in water and washed. The pulp was cut into transverse slices approx. 2 mm thick, and the slices of pulp and peel were dipped in 0.5 % (by mass per volume) citric acid solution for 10 min, drained and dried at 60 °C overnight to reduce enzymatic browning of the material. After draining and drying, pulp and peel slices were milled to produce flour in a Mill Laboratory (Thomas -Wiley, Model 4, Thomas Scientific, Swedesboro, NJ, USA) and passed through 60 and 40 mesh screens, respectively. As the result of the process, two types of flour were produced: flour obtained from green banana peel and flour obtained from green banana pulp (Fig. 1; 2). Both types were placed in impermeable plastic bags and stored at 18 °C for later analysis. Flour yield was calculated by dividing the amount of flour produced by the amount of green banana used, and the results were expressed as g of flour per kg of banana.