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Preparation of Protein Oleogels: Effect on Structure and Functionality.

Annika Feichtinger1, Elke Scholten1

  • 1Physics and Physical Chemistry of Foods, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands.

Foods (Basel, Switzerland)
|December 1, 2020
PubMed
Summary

Protein oleogels offer a nutritious alternative to solid fats. This review explores protein oleogel preparation, microstructure, and rheological properties, highlighting their potential as fat replacers in food products.

Keywords:
gel strengthgel structureoil structuringoleogelationproteinprotein oleogelation

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Area of Science:

  • Food Science
  • Materials Science
  • Biochemistry

Background:

  • Proteins are emerging as promising structuring agents for liquid oils.
  • Their nutritional value and consumer acceptance make them ideal for edible oleogels.
  • Protein oleogels offer a healthier alternative to traditional solid fats.

Purpose of the Study:

  • To review protein oleogel preparation methods.
  • To link gel microstructure with macroscopic rheological properties.
  • To assess protein oleogels as fat replacers in food products.

Main Methods:

  • Overview of various protein oleogel preparation techniques.
  • Analysis of resulting gel microstructures.
  • Discussion of structure-property relationships.

Main Results:

  • Different preparation methods yield distinct protein oleogel microstructures.
  • Microstructure significantly influences rheological properties.
  • Protein oleogels show potential as functional ingredients in food systems.

Conclusions:

  • Protein oleogelation is a developing field with diverse preparation strategies.
  • Understanding structure-property relationships is key for optimizing oleogel functionality.
  • Further research is needed to fully evaluate protein oleogels as industrial-scale fat replacers.