Effect of abrasive emery rollers using various speeds on dehulling of black gram (Vigna mungo)

Abstract

The study was done to assess the effect of abrasive roller on the dehulling of the black gram to minimise the losses and increase the dal recovery the two different emery roller prepare by the using the emery no.40 and 60.was used in PKV mini dal mill which was used for milling experiment on black gram grain. The maximum dal recovery 75.69% found in case of roller made from emery no.40. The dehulling efficiency, dehulling index and degree of dehulling 87.05%, 0.87 and 95.03 and for emery roller no. 60 dal recovery, dehulling efficiency, dehulling index and degree of dehulling 72.71%, 80.08%, 0.84 and 80.8 at the speed of 1200 rpm.