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  • 1 East Tennessee State University Department of Health Sciences Box 70673 Johnson City TN 37604 USA
  • 2 Purdue University Department of Basic Medical Sciences West Lafayette USA
  • 3 Purdue University Department of Animal Sciences West Lafayette USA
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An investigation into the influence of phytates on the in situ absorption of amino acids (lysine, glutamate and leucine) and glucose from the intestinal lumen of 3-week-old chickens was carried out. Birds were anaesthetised and the intestines exteriorised. Uptake of 5 mM of each nutrient over a 4-min period was measured in the presence of four phytate concentrations (0, 50, 250 and 500 mM). Five birds were used for each nutrient at each concentration of phytate tested. Leucine uptake decreased linearly (P < 0.001) and that of glutamate showed a tendency to decrease (P = 0.055) as the phytate concentration increased. Absorption of lysine and glucose were unaffected by the presence of phytate. In conclusion, phytate in the small intestinal lumen exerted a depressive effect on the absorption of specific free amino acids from the lumen. Its depressive effect was greatest for leucine followed by glutamate, and phytate had little effect on the absorption of lysine.

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Editor(s)-in-Chief: Benkő, Mária

Managing Editor(s): Székely, András

Editorial Board

      Dénes, Béla
      Eszterbauer, Edit
      Fébel, Hedvig
      Fodor, László
      Harrach, Balázs
      Andras Komaromy (USA)
      Peter Massanyi (Slovak Republic)
      Nagy, Béla
      Németh, Tibor
      Neogrády, Zsuzsanna
      Kurt Pfister (Germany)
      Solti, László
      Szabó, József
      Vajdovich, Péter
      Varga, János
      Štefan, Vilĉek (Slovak Republic)
      Vörös, Károly
      Herbert Weissenböck (Austria)
      Zsarnovszky, Attila

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