title: [Mineral bioaccessibility in yerba mate (Ilex paraguariensis St) infusions and mixtures with iron fortified milk].
abstract: The bioaccesibility of various minerals in infusions of yerba male (mate cocido) and preparations with Fe-fortified milk was assessed to determine the influence of the infusions on the potential bioavailability of intrinsic minerals and fortified Fe. The dialyzability (D) of iron, calcium, magnesium and zinc was evaluated, as indicator of bioaccesibility in milk samples fortified with ferrous sulfate (FS), ferric bisglicinate GF) and EDTANaFe. Dialyzability was also evaluated in mixtures of milk with mate cocido and in infusions cooked with Fe-fortified milk. In each case the effect of ascorbic acid (AA) in a ratio Fe: AA 1:4 was studied. In the mate cocido FeD was zero and increased to 15% with the addition of AA. The FeD in milk with SF, BGF and EDTANaFe (1.2, 1.0 and 27.4 respectively), increased with the addition of AA to 2.9, 3.5 and 24.8. The FeD in the mixture milk: mate cocido was 4.7%, 5.7% and 31.2% for SF, BGF and EDTANaFe respectively. With the addition of AA was 13.5%, 13.7% and 25.7%. In infusions cooked with SF fortified milk, the values were lower than those of the mixture. The CaD did not show significant changes in Fe fortified milk and its preparations with yerba mate, while the MgD and ZnD only showed a significant reduction in infusion cooked with Fe-fortified milk. The use of infusions of yerba mate does not provide significant amounts of minerals. However, its use in mixtures with milk will not adversely affect the availability of Fe in that matrix.
authors.affiliation: Cátedra de Bromatología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina.
authors.forename: Maria J
authors.initials: MJ
authors.lastname: Binaghi
authors.forename: Nestor R
authors.initials: NR
authors.lastname: Pellegrino
authors.forename: Mirta E
authors.initials: ME
authors.lastname: Valencia
mesh_terms: D000818:Animals; D001628:Beverages / Q000032:analysis*; D001682:Biological Availability; D005296:Ferrous Compounds / Q000008:administration & dosage*; D005527:Food, Fortified / Q000032:analysis*; D030019:Ilex paraguariensis / Q000737:chemistry*; D008892:Milk / Q000737:chemistry*; D008903:Minerals / Q000493:pharmacokinetics*; D014687:Venezuela
chemical_list: D005296:Ferrous Compounds; D008903:Minerals