Premium
Comparison of Ferric Glycinate to Ferrous Sulfate in Model Infant Formulas: Kinetics of Vitamin Losses
Author(s) -
GALDI M.,
CARBONE N.,
VALENCIA M.E.
Publication year - 1989
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1989.tb05152.x
Subject(s) - ferrous , sulfate , ferric , chemistry , iron sulfate , inorganic chemistry , nuclear chemistry , organic chemistry
Ferric glycinate prooxidant properties were compared with those of ferrous sulfate in a powdered casein‐based infant formula. About 60 ppm of either iron source were added separately to the experimental formula. Fortified formulas were then stored at 20°C, 37°C or 45°C for 12, 9 or 7 months, respectively. The samples were assayed periodically during storage for vitamins A, E, B 1 , B 2 and C evaluation. Ferric glycinate fortification yielded a 30‐50% deterioration of the rate constant values of those obtained for ferrous sulfate addition. A 10‐30% increase in activation energy values was also observed when ferric glycinate replaced ferrous sulfate as iron source. Results demonstrated lower prooxidant properties of iron when added to this infant formula as ferric glycinate than when ferrous sulfate was present.