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Updated: Jun 15, 2026

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Structural Build-Up and Stability of Hybrid Monoglyceride-Triglyceride Oleogels
Kato Rondou1, Antonia Dewettinck1, Koen Dewettinck1,2
1Food Structure and Function Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
Hybrid oleogels using monoglycerides (MAGs) and triglycerides (TAGs) show separate crystallization and initial synergy. However, this synergy in structured fats is not maintained during storage, impacting mechanical strength.
Area of Science:
- Food science and technology
- Materials science
- Physical chemistry
Background:
- Oleogelation offers a healthier alternative to traditional fats by reducing saturated fat content.
- Monoglycerides (MAGs) are effective oleogelators, but their use is limited by mechanical strength and stability issues.
- Hybrid fat blends combining different lipids show promise for enhancing oleogel functionality.
Purpose of the Study:
- To investigate the interactions between monoglycerides (MAGs) and triglycerides (TAGs) in hybrid oleogels.
- To evaluate the crystallization behavior and macroscale properties of oleogels with varying MAGs-TAGs ratios.
- To assess the impact of shear crystallization and storage on the stability and rigidity of hybrid oleogels.
Main Methods:
- Differential scanning calorimetry (DSC), Small-angle X-ray scattering (SAXS), and Wide-angle X-ray scattering (WAXS) were used to study crystallization.
- Phase contrast microscopy was employed to visualize crystal structures.
- Rigidity and oil binding capacity were measured for dynamically produced oleogels during storage.
Main Results:
- Distinct MAG and TAG crystal populations were observed in M50-T50 and M75-T25 blends, indicating separate crystallization.
- Dynamically produced oleogels (Dy-M50-T50 and Dy-M75-T25) exhibited initial synergistic effects.
- The initial rigidity of these dynamically produced oleogels significantly decreased during storage.
Conclusions:
- MAGs and TAGs can crystallize independently within hybrid oleogels.
- While initial synergy is observed in dynamically structured hybrid oleogels, this effect is transient and diminishes over time.
- The mechanical properties of these hybrid oleogels are influenced by the interplay between gelator type, ratio, and processing conditions.
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