Complex interfaces in food: Structure and mechanical properties

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Multiphase food systems (emulsions, foam) often have interfaces with a complex microstructure, formed by interfacial self-assembly of proteins, lipids, or colloidal particles. The response of these interfaces to deformations tends to be highly nonlinear and far more complex than the response of interfaces stabilized by simple low molecular weight surfactants. In this review we present an overview of various types of complex interfaces encountered in food products, and discuss their microstructure and mechanical properties. We also discuss how to properly characterize the nonlinear behavior of these interfaces, using surface rheological techniques, droplet deformation studies, and structural characterization methods.
Original languageEnglish
Pages (from-to)59-71
JournalTrends in Food Science and Technology
Issue number1
Publication statusPublished - 2014


  • in-water emulsions
  • by-layer technique
  • polyelectrolyte capsules
  • rheological properties
  • air/water interfaces
  • dilatational rheology
  • pickering emulsions
  • droplet deformation
  • protein adsorption
  • liquid interfaces


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