## Abstract The proteins of the new rapeseed varieties Brassica napus, Lesira, and Brassica napus, Erglu, consist of two fractions having distinct isoelectric points. These fractions can be isolated in high yields. Their nutritive value is superior to that of the corresponding meals.
Protein Isolates from New Varieties of Rapeseed
β Scribed by Nockrushy, A. S. El
- Publisher
- John Wiley and Sons
- Year
- 1976
- Weight
- 890 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0931-5985
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β¦ Synopsis
Abstract
Defatted meals of two varieties of rapeseed, Brassica napus, Erglu and Lesira, were used for the isolation of proteins. The protein isolates, obtained in high yields, are light colored, bland products having foam stability higher than soybean protein. Their amino acid composition shows adequate amounts of isoleucine and sulphur amino acids which seem to be limiting in rapeseed meal. Rapeseed meal and protein isolates prepared therefrom, were fed to chicks that had been depleted of their embryonic protein reserve. Feed consumption, weight gain and protein efficiency ratio reveal better performance of the protein isolates as compared to the corresponding meals. Erglu meal, too, is eminently suitable as supplement to chicken feed, whereas Lesira meal shows detrimental effects, probably due to its high glucosinolate content.
π SIMILAR VOLUMES
Poster 393 phenylalanine than those reported by these authors. WSPF and SSPF had similar amino-acid compositions except that WSPF was somewhat higher in threonine. glutamic acid. and lysine than SSPF. Gel-filtration pattern of total proteins consisted of 3 distinct peaks (Fig. 2). The hump on the m
## Abstract The functional and nutritional characterization of two isolates elaborated through cleaningβextraction processes, as well as that of a third isolate obtained by means of a chemical modification (alkaline heat treatment) from one of the former, was carried out. The first two isolates exh