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Nutritional evaluation of sunflower-seed protein products

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Summary

Defatted sunflower-seed meal, sunflower-seed protein concentrate and protein isolate were fed to protein-depleted chicks. The effect of the enrichment of meal and of protein isolate with lysine, methionine, or a mixture of both on the nutritional value was investigated. Sunflower-seed protein products are primarily limited in lysine. Food consumption, weight gain and protein/efficiency ratio reveal superior performance of lysine- or lysine- and methionine-enriched meal or protein isolate, as compared to the correponding non-enriched products. Methionine enrichment does not improve the nutritional quality and even result in inferior performance. Non-enriched protein isolate supports better growth than non-enriched meal specially at later stages of chick growth.

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Author notes

  1. F. S. Taha, A. S. El-Nockrashy & Z. E. Shoeb

    Present address: National Research Center, Dokki, Cairo, Egypt

  2. M. Abbassy

    Present address: University College for Girls, Ain Shams University, Cairo, Egypt

Authors and Affiliations

  1. National Research Center, Dokki, Cairo, Egypt

    M. Abbassy

  2. National Research Center-Fats & Oils Laboratory, Dokki, Cairo, Egypt

    F. S. Taha, M. Abbassy, A. S. El-Nockrashy & Z. E. Shoeb

Authors
  1. F. S. Taha
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  2. M. Abbassy
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  3. A. S. El-Nockrashy
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  4. Z. E. Shoeb
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Taha, F.S., Abbassy, M., El-Nockrashy, A.S. et al. Nutritional evaluation of sunflower-seed protein products. Z Ernährungswiss 19, 191–202 (1980). https://doi.org/10.1007/BF02018785

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