High temperature storage of infant formula milk powder for prediction of storage stability at ambient conditions

    23 Citations (Scopus)

    Abstract

    Hexanal formation and pentanal formation were found to be early signs of quality deterioration of both a high lipid infant formula milk powder and a high protein infant formula milk powder with similar lactose and water content; these aldehydes were sensitive predictors for shelf-life at ambient conditions using short term storage at temperatures up to 55 °C. Higher temperature loads such as 70 °C were found to induce rapid lactose crystallisation entailing a rising water activity, higher levels of free radicals, rapid browning and formation of Strecker aldehydes from protein degradation, of which all were found to be unsuitable for shelf-life prediction. Advanced glycation end products were not detected during storage at 25 °C for up to 18 weeks and the rate of oxygen consumption for the reconstituted milk drink was not affected by storage of the infant formulas at 25 °C; neither can be recommended for shelf-life prediction.

    Original languageEnglish
    JournalInternational Dairy Journal
    Volume73
    Pages (from-to)166-174
    Number of pages9
    ISSN0958-6946
    DOIs
    Publication statusPublished - Oct 2017

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