2.3. Browning assessment
The browning index was assessed by measuring the extent of browning area on the surface of banana fruit using the following scale (Huang and Jiang, 2012): 1 = no browning; 2 = 1/2 browning; 5 = >1/2 browning. The browning index was calculated using the formula: ∑browning of scale × fingers within each class/(total fingers × total scales). Each treatment was divided into three groups to evaluate the average values