Blueberry packing line impact evaluation using a miniature instrumented sphere
Blueberry packing lines could cause impact damage to blueberries which will result in fruit bruising. In this study, impacts in four empty commercial blueberry packing lines were measured quantitatively using a miniature instrumented sphere. Impacts were recorded at transfer points. Average peakG of 66-97 g, maximum peakG of 230-402 g, cumulative peakG of 1720-2469 g and average number of impacts of 25.5-26.8 were recorded on the 4 lines. The highest impact level, and largest number of impacts, was found when the sensor dropped into a clamshell filler or collecting tray. Although laboratory tests are needed to determine the relationship between the impact level and the bruise rate of the fruit in order to accurately estimate the bruise potential for each packing line, the potential for bruise damage tends to be high at some transfer points.
Xu, R., Li, C., Takeda, F. and Krewer, G. (2016). Blueberry packing line impact evaluation using a miniature instrumented sphere. Acta Hortic. 1130, 639-646
blueberry, packing line, instrumented sphere, impact measurement