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- W2070042308 abstract "Abstract Amino acid composition and fatty acid composition were determined on seed samples of a range of white lupin (Lupinus albus) cultivars and accessions grown in either of two environments. Variability between genotypes was found for lysine, arginine and glutamic acid content, but not for the concentrations of other amino acids. The deficiency in sulphurcontaining amino acids, typical of legume proteins, was evident, with methionine and cyst(e)ine totalling only 2.2% of the protein. Variability was limited, indicating that improvement by breeding would be impracticable. Lupinus albus differed slightly from other lupin species in amino acid composition, having higher levels of threonine, tyrosine and isoleucine, but a lower level of glutamic acid than both L. angustifolius and L. luteus. Four low-alkaloid lines of L albus each had higher lysine content than the high-alkaloid line, but ‘Kiev Mutant’, despite earlier claims, had a lysine level no higher than the other three low-alkaloid lines. Fatty acid composition of the seed oil varied considerably between genotypes. Oleic acid ranged from 43.6 to 54.4% and linolenic acid from 6.7 to 15.2%, these two fatty acids being negatively correlated at one site. Linoleic acid content varied between 17.2 and 26.9% and was not correlated with other fatty acids. Total oil content averaged 9.6% with little variability between lines. It is concluded that, relative to other lupin species, L. albus has a more favourable amino acid profile for its utilisation in cereal-based diets for animals, particularly if the energy source is wheat, which is deficient in threonine. The higher oil content would be an important energy benefit to such diets and may allow their protein/energy balance to be maintained at higher levels of incorporation of L. albus seed meal than is possible with other lupin species." @default.
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- W2070042308 date "1983-10-01" @default.
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- W2070042308 title "Variability for protein and oil quality in Lupinus albus" @default.
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- W2070042308 doi "https://doi.org/10.1016/0377-8401(83)90020-2" @default.
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