Freeze-thaw stability of mayonnaise type oil-in-water emulsions

Emma Magnusson, Christer Rosén, Lars Nilsson

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

    Abstract

    In this paper, the freeze-thaw stability of mayonnaise type oil-in-water emulsions is studied. The emphasis of the experiments have been on the properties of the dispersed oil phase as only small, or no effects, were observed from initial experiments on changing the properties of the aqueous phase within the investigated ranges. Different vegetable oils are investigated in order to relate the composition of the oil phase to the stability of the corresponding emulsion. The crystallization behaviour of the oils is studied with differential scanning calorimetry (DSC) and by freeze-thaw experiments in bulk systems. The amounts of triacylglycerides in the oils that theoretically crystallize at different temperatures are also calculated. Moreover, the impact of the freezing rate on the stability of emulsions is investigated. Large differences in freeze-thaw stability of emulsion prepared with different oils are observed. By principal component analysis (PCA) the stability of the emulsion could be correlated with the composition and crystallization behaviour of the oils. Small/no effects of the addition of different substances (for example polyglycerol esters and trehalose) to both oil and water phase are observed. Moreover, the experiments on the freezing conditions show that alteration of the freezing rate have a large impact on the freeze-thaw stability. (C) 2010 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Title of host publicationFood Hydrocolloids
    PublisherElsevier
    Pages707-715
    Volume25
    DOIs
    Publication statusPublished - 2011
    EventConference on Food Colloids 2010 - On the Road From Interfaces to Consumers - Granada, Spain
    Duration: 2010 Mar 212010 Mar 24

    Publication series

    Name
    Number4
    Volume25
    ISSN (Print)0268-005X
    ISSN (Electronic)1873-7137

    Conference

    ConferenceConference on Food Colloids 2010 - On the Road From Interfaces to Consumers
    Country/TerritorySpain
    CityGranada
    Period2010/03/212010/03/24

    Subject classification (UKÄ)

    • Food Science

    Free keywords

    • Mayonnaise
    • Freeze-thaw stability
    • Oil crystallization
    • Egg yolk
    • Emulsion

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