Unconventional Protein Sources: I.Lupinus albus

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Abstract
Three different treatments were tested for their effectiveness in removing alkaloids, and producing protein products suitable for human consumption from Lupinus albus seeds. The treatments included: a) water leaching of the seeds, b) ammonium salt treatment of the seeds, and c) multistage extraction of the defatted meal. Results revealed that treatments a) and c) were highly effective in the removal of alkaloids. Protein contents of the resulting three products were about 62, 47 and 58%, respectively, compared to 39% in the seed. Amino acid analysis showed that the protein preparations lack sulphur amino acids, lysine, tryptophan and valine.

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