期刊名称：Western Australia. Fisheries Department. Fisheries Research Reports
印刷版ISSN：1035-4549
出版年度：2008
卷号：178
页码：70-70
出版社：Government of Western Australia / Department of Fisheries
摘要：This study examined the variability in chemical composition and physical hardness of lupin
kernels. Seventy-five samples of lupins were collected over a three-year period. Of those 75
samples, 39 samples constituted repeated samples of the same genotype grown at the same
location in three successive years. Each of the lupin samples was dehulled and a lupin meal/
flour produced.
Mean protein across all samples was 45.4% on a dry basis. Protein based on sum of amino acids
was marginally lower at 44.0% and an improved transformation factor for nitrogen to protein
based on N x 6.02, for lupins is proposed. Total lipid was 7.8% and ash 3.0%. Carbohydrates,
measured by difference between dry matter minus protein, lipid and ash, were 43.8% on a dry
basis. Mean gross energy was 20.8 MJ/kg DM. Protein ranged from 36.5% to 56.7% with a
coefficient of variation (CV) about the mean of 7.6%. Variation in fat/lipid levels was greater
with a CV of 12.1%. Gross energy ranged from 20.1 to 21.5 MJ/kg DM with a CV of 15.3%.
Substantial variability was also observed in the amino acid composition of the samples, with
some amino acid CV’s up to 32%.
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