Double Network as a Design Paradigm for Structuring Emulsion Gels in Food

Area of Science:

• Food Science
• Materials Science
• Biotechnology

Background:

• Current single-network emulsion gels have limitations in achieving desired textural and functional properties for plant-based foods.
• Double-network hydrogels, successful in biomedical engineering, offer a potential solution for enhanced food structuring.
• Mimicking animal-based food properties requires advanced structuring of lipids and bioactive ingredients.

Purpose of the Study:

• To explore the application of double-network systems in creating emulsion gels for plant-based food products.
• To enhance the stability, texture, and encapsulation of bioactive ingredients in plant-based food matrices.
• To investigate the modulation of thermal and textural characteristics through biopolymer concentration in dual gel networks.

Main Methods:

• Reviewing the formation and network interactions of double-network emulsion gels.
• Analyzing the impact of varying biopolymer and gelator concentrations on gel properties.
• Identifying challenges in protein-polysaccharide systems, such as osmotic pressure differences and phase separation.

Main Results:

• Double-network emulsion gels demonstrate enhanced stability and texture compared to single-network systems.
• The second network allows for tuning thermal characteristics, crucial for cooking stability and controlled release.
• Challenges remain in achieving homogenous double-network emulsion gels due to osmotic pressure disparities between phases.

Conclusions:

• Double-network emulsion gels represent a promising advancement for structuring lipids in plant-based foods.
• These gels offer superior performance over single-network emulsion gels and oleogels for mimicking animal-based food attributes.
• Further research is needed to overcome phase separation issues in mixed protein-polysaccharide systems for optimal gel strength.