Emulsion-template oleogels: Formation mechanisms, structural regulation, and potential as solid fat substitutes.

Area of Science:

• Food Science and Technology
• Materials Science
• Nutritional Science

Background:

• Solid fats (saturated and trans fats) offer desirable food properties but pose health risks.
• The food industry seeks healthier fat alternatives that maintain sensory and textural qualities.
• Emulsion-template oleogels present a novel strategy using vegetable oils as a healthier fat source.

Purpose of the Study:

• To review methods for enhancing emulsion-template oleogels.
• To evaluate the impact of these oleogels on food texture and sensory attributes.
• To assess their potential as fat replacers in various food applications.

Main Methods:

• Modification of emulsifiers using physical and chemical approaches.
• Optimization of interfacial properties and three-dimensional network formation.
• Evaluation of processing characteristics: oil-holding capacity, thermal stability, and rheology.

Main Results:

• Enhanced interfacial stability and network structure improve oleogel properties.
• Modified oleogels demonstrate improved rheological and textural performance.
• Key processing characteristics indicate suitability for food applications.

Conclusions:

• Emulsion-template oleogels show promise as functional fat replacers.
• Optimized oleogels can substitute solid fats in meat, baked, dairy, and frozen products.
• Further research is needed to address challenges and explore future prospects.