Stability of powdered infant formula during secondary shelf-life and domestic practices
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Date
2020-06-30
Authors
Condurso, Concetta
Cincotta, Fabrizio
Merlino, Maria
Stanton, Catherine
Verzera, Antonella
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd.
Published Version
Abstract
Powdered infant formula (PIF) and lactose-free PIF during secondary shelf-life (SSL) and under domestic practices was investigated to verify their stability up to the expiration date and under the label instructions for milk reconstitution. Particular attention was given to variations in Maillard reaction and lipid peroxidation products identified and quantified by HS-SPME-GC-MS. Two types of PIF: Type A based on bovine milk and Type B a lactose-free product based on glucose syrup were analysed. The PIF were analysed at regular time intervals beyond the labelled expiration date after opening, and reconstituted using water at 70 °C, 80 °C and 90 °C. A large number of volatile compounds were identified and significant statistically differences resulted during SSL and water temperature used for reconstitution that were correlated to the PIF composition. The study showed that water temperature for reconstitution of samples and the SSL has to be adapted to PIF composition.
Description
Keywords
Powdered infant formula (PIF) , Lactose-free PIF , Secondary shelf-life
Citation
Condurso, C., Cincotta, F., Merlino, M., Stanton, C. and Verzera, A. (2020) 'Stability of powdered infant formula during secondary shelf-life and domestic practices', International Dairy Journal, 109, 104761 (9pp). doi: 10.1016/j.idairyj.2020.104761