Quality Characteristics of Dehulled Rapeseed

The quality characteristics of oil, protein, erode fibre and glucosinolate content of dehulled rapeseed were evaluated and compared with those of unhulled rapeseed. Samples of large size seed (> 1.4 mm) and small size seed (<1.4 mm) having moisture contents of 4.2,6.4,8.7 and 11.1% (d.b.) were dehulled on a laboratory "Satake" dehusker at 8 mls peripheral speed of the rolls and at 0.5 mm clearance between the 2 rolls for large size seeds and 0.3 mm clearance for small size seeds. Quality characteristics (protein, crude fibre and glucosinolate content) of the dehulled samples were determined using standard procedures. Dehulling resulted in increase in protein content by 16.10%, and decrease in crude fibre and glucosinolate content by 12.29 and 15.39%, respectively over the values for unhulled rapeseed. However, there was about 1.8% loss in oil content due to dehulling.