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Antinutrients In Infant Cereals Working Against Nutrition Absorption in Babies?
Given the importance of an adequate intake of minerals during infancy, Dr. Carmen Frontela and her colleagues in the University of Murcia (Spain) tested the effect of the dephytinization of three different commercial infant cereals on iron, calcium, and zinc bioavailability. Their study will be published on April 28, 2009 in the World Journal of Gastroenterology
In this study, Both dephytinized and non-dephytinized infant cereals were digested using an in vitro digestion protocol adapted to the gastrointestinal conditions of infants younger than 6 months. Mineral cell retention, transport, and uptake from infant cereals were measured using the soluble fraction of the simulated digestion and the Caco-2 cells.
They found that Dephytinization of infant cereals significantly increased (P < 0.05) the cell uptake efficiency (from 0.66%-6.05% to 3.93%-13%), retention (from 6.04%-16.68% to 14.75%-20.14%) and transport efficiency (from 0.14%-2.21% to 1.47%-6.02%), of iron, and the uptake efficiency (from 5.0%-35.4% to 7.3%-41.6%) and retention (from 4.05%-20.53% to 14.45%-61.3%) of zinc, whereas calcium only cell uptake showed a significant increase (P < 0.05) after removing phytate from most of the samples analyzed. A positive relationship (P < 0.05) between mineral solubility and the cell uptake and transport efficiencies was observed.
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