A PROCESS FOR THE DEHULLING OF NIGER (GUIZOTIA ABYSSINICA, CASS) SEEDS

摘要

A process for dehulling the Niger seed which comprises the steps of cleaning, grading, de-stoning and cooking the seeds in at optimum concentration. The hulls were separated by isopycnic method and drying to obtain dehulled seeds rich in oil and protein. The dehulled seeds were expeller pressed to obtain light coloured oil and cake. The defatted meal prepared from cake has high protein and low in fiber. The physicochemical and fattyacid composition of the oil is not changed. The flour has retained all the essential amino acids and the nutritional characteristics were improved in the dehulled flour. The process inactivates the trypsin inhibitor activity to not detectable level. 12