An Instron Universal Testing Machine (Model 1122, Instron Engineering Corp., Canton, MA) equipped with a 500kg load cell was then used to conduct the nondestructive deformation test. Each fruit was compressed 6.2 mm using a crosshead
speed of 50 mm/min and a chart speed of 200 mm/min. The full scale load on the chart recorder was 10 kg. The testing procedures followed the methods outlined by Hampshire et al. (1987).