الفهرس 
Biochemical and technological studies on canola seeds
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Abstract
Canola seeds (Brassica napus L. cultivar Serw 4) were obtained from Field Crops Research Institute, A.R.C, Giza, Egypt. The oil extraction by expeller then determination of chemical composition of meal and seed after expeller and determination of fatty acid of oil in two different lab. and it obvious increasing in erucic acid (13.5), which confirms a deterioration of the variety serw-4 and unfit as a source of edible oil. To take advantage of the remnants of the oil industry in food applications three methods to remove antinutrint were performed for protein isolates (alcoholic, carbon and leaching). The canola seeds, meal and canola protein isolates (CPI) treatments were analyzed for their chemical composition, anitinutritional factors and functional properties. The chemical analysis of oil showed the highest amount of erucic acid (13.5%) in oil which indicates deterioration in that cultivar and not edible as a food oil. The results indicated that alcoholic method had highest content of protein (88.1%) followed by carbon (77.68%) then leaching (71.84%). The highest value in chemical score was in alcoholic (2.27) with limiting amino acid was Hisitidine. Significant difference in scavenging activity and reducing power due to the method of preparation of protein isolate where leaching method had the highest values. On the other hand the best method for removing phytic, phenolic and tannins was alcoholic. But the leaching method had the best treatment to remove glucosinolate. It is obvious that alcoholic treatment forprotein isolate was the best in functional properties in whippability, foam capacity and foam stability. Canola meal was the best in water absorption, but leaching the best in oil absorption, Carbon treatment was the best in emulsion activity and stability