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Edible polysaccharide-based oleogels and novel emulsion gels as fat analogues: A review

Journal

CARBOHYDRATE POLYMERS
Volume 322, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2023.121328

Keywords

Polysaccharide; Oleogel; Novel emulsion gel; Oil structuring; Fat analogue

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Polysaccharide-based oleogels and emulsion gels have shown great potential as substitutes for solid fats in food applications. This comprehensive review discusses the types, preparation methods, and mechanisms of these gels, as well as their potential developments and application challenges. The study highlights the importance of selecting appropriate gels to meet product requirements.
Polysaccharide-based oleogels and emulsion gels have become novel strategies to replace solid fats due to safe and plentiful raw material, healthier fatty acid composition, controllable viscoelasticity, and more varied nutrition/flavor embedding. Recently, various oleogelation techniques and novel emulsion gels have been reported further to enrich the potential of polysaccharides in oil structuring, in which a crucial step is to promote the formation of polysaccharide networks determining gel properties through different media. Meanwhile, polysaccharide-based oleogels and emulsion gels have good oil holding, nutrient/flavor embedding, and 3D food printability, and their applications as fat substitutes have been explored in foods. This paper comprehensively reviews the types, preparation methods, and mechanisms of various polysaccharide-based oleogels and emulsion gels; meanwhile, the food applications and new trends of polysaccharide-based gels are discussed. Moreover, some viewpoints about potential developments and application challenges of polysaccharide-based gels are mentioned. In the future, polysaccharide-based gels may be flexible materials for customized nutritional foods and molecular gastronomy. However, it is still a challenge to select the appropriate oleogels or emulsion gels to meet the requirements of the products. Once this issue is addressed, oleogels and emulsion gels are anticipated to be used widely.

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