Evaluation of Sizing Quality of thai Mandarin Fruits by Sizing Map

Abstract

This study was to determine sizing quality of fieerent sizing methods by means of sizing map, Methodology comprised sizing mandarines into 5 grades,60 fruits each : i) with perforated cylinder sizing machine and ii) two sizer experts. Besides, sizing quality of both methods by means of sizing map was performed. Analysis resulted the machine could size at the mean contamination ratio, Cr = 10.7% giving sizing parameter function, P = 0.329 L + 0.670 D which was near to sizing by volume. Visual sizing of the expert yielded mean contamination ratio, Cr, ranging from 12 to 15.3%