Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10556356 | Journal of Trace Elements in Medicine and Biology | 2014 | 6 Pages |
Abstract
A radiobioassay was performed in rats with or without iron depletion to evaluate the iron bioavailability of diets enriched with common beans and with “multimixture”, a nutritional supplement based on parts of foods that are not usually eaten. The full-body 59Fe level was determined after 5Â h, the absorbed 59Fe level was determined after 48Â h, and the amount of 59Fe retained was determined after 7 days. Iron bioavailability was assessed by the full-body radioactivity of the animals, determined using a solid scintillation detector. The iron bioavailability of common beans was higher in the iron-depleted animals (55.7%) than in the non-depleted animals (25.12%) because of the higher absorption rate in the iron-depleted animals. The multimixture did not influence dietary iron bioavailability. In addition, the iron bioavailability of common beans was similar to that observed in the standard source of iron for Wistar rats. Hence, common beans may be considered an adequate dietary iron source because of its high bioavailability.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Priscila Brigide, Terezinha da R. Ataide, Solange G. Canniatti-Brazaca, Antônio S. Baptista, Adibe L. Abdalla, VirgÃlio F. Nascimento Filho, Sônia M.S. Piedade, Nassib B. Bueno, Antônio E.G. Sant'Ana,