Effect of grain moisture and clearance of machine on mechanical damage of processed paddy


  • salih kadhim Alwan Tehran University


mechanical damage, processed paddy, clearance, husking, grain moisture .


The effect of  clearance in husking machine (Satake BK40 type) on paddy cultivar of Amber 31 (AM31)  were tested during husking at three clearance of 0.5,0.7and 0.9 mm and two grains moisture 9-11% and 11-13%  .The experiments were carried out in a factorial experiment under complete randomized design with three replications. The results showed that the 9-11% grain moisture was significantly better than the 11-13% grain moisture in all studied conditions. The results showed a machine productivity of 1.707 and 1.441 th-1, power consumption of 13.585 and 14.800 kW, husking efficiency of 83.478% and 81.979%, milling recovery of 69.848 and68.794% ,head paddy of 68.086 and 66.221 %, and broken paddy of 6.226 % and 7.471 % , for 9-11% and 11-13%, respectively. The clearance of 0.9 mm was significantly superior to the levels of 0.7 and 0.5 mm in all studied conditions.

Author Biography

salih kadhim Alwan, Tehran University

Department of Machinery Agriculture, Faculty of Agriculture, Tehran University






VI-Postharvest Technology and Process Engineering