title: Infant Milk Formulas: Effect of Storage Conditions on the Stability of Powdered Products towards Autoxidation.
abstract: Thirty samples of powdered infant milk formulas containing polyunsaturated fatty acids (PUFAs) have been stored at four different temperatures (20, 28, 40 and 55 °C) and periodically monitored for their malondialdehyde (MDA) content up to one year. MDA levels ranged between 250 and 350 ng/kg in sealed samples with a maximum of 566 ng/kg in samples stored at 28 °C for three weeks after opening of their original packages, previously maintained for ten months at 20 °C. Sample stored at 40° and 55 °C were also submitted to CIE (Commission Internationale de l'Eclairage) colorimetric analysis, since color is the first sensorial property that consumers may evaluate. Overall, the results demonstrated a good stability of PUFA-enriched infant milk formulas in terms of MDA content. However, some care has to be paid when these products are not promptly consumed and stored for a long time after first opening.
authors.affiliation: Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy. stefania.cesa@uniroma1.it.
authors.forename: Stefania
authors.initials: S
authors.lastname: Cesa
authors.affiliation: Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy. mariaantonietta.casadei@uniroma1.it.
authors.forename: Maria Antonietta
authors.initials: MA
authors.lastname: Casadei
authors.affiliation: Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy. felice.cerreto@uniroma1.it.
authors.forename: Felice
authors.initials: F
authors.lastname: Cerreto
authors.affiliation: Dipartimento di Chimica e Tecnologie del Farmaco, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy. patrizia.paolicelli@uniroma1.it.
authors.forename: Patrizia
authors.initials: P
authors.lastname: Paolicelli
keywords: colorimetry; infant milk formulas; lipid peroxidation; malondialdehyde; shelf-life