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Physicochemical Characteristics of Potato Starch Extrudates Enriched with Edible Oils
Marzena Włodarczyk-Stasiak1, Małgorzata Jurak2, Agnieszka Ewa Wiącek2
1Department of Analysis and Evaluation of Food Quality, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Skromna Street 8, 20-704 Lublin, Poland.
Molecules (Basel, Switzerland)
|January 28, 2026
Summary
Potato starch extrudates modified with edible oils show enhanced functional properties. Optimal results were achieved with 6% sunflower oil, indicating potential for functional food product development.
Area of Science:
- Food Science
- Materials Science
- Biochemistry
Background:
- Starch extrudates serve as versatile carriers for bioactive compounds in food, medicine, and pharmaceuticals.
- Physicochemical modification of starch enhances its functional properties for diverse applications.
Purpose of the Study:
- To characterize potato starch extrudates enriched with rapeseed or sunflower oil.
- To investigate the impact of chemical modification using K2CO3 on starch extrudate properties.
- To determine optimal oil concentration for improved functional parameters.
Main Methods:
- Chemical modification of starch extrudates with edible oils (rapeseed, sunflower) at 3%, 6%, 9% concentrations.
- Structural analysis using optical/confocal microscopy, FTIR, and low-temperature nitrogen adsorption (LTNA).
- Characterization of starch dispersions via static/dynamic light scattering (SLS/DLS), nephelometry, and electrophoretic mobility; viscosity measurements.
Main Results:
- Starch extrudates with 6% sunflower oil exhibited superior functional properties.
- Optimal extrudates demonstrated enhanced stability, increased structural order, and improved oil complexation.
- Chemical modification influenced the physicochemical and structural characteristics of the starch systems.
Conclusions:
- Potato starch extrudates enriched with 6% sunflower oil possess optimal functional characteristics for industrial applications.
- Modified starch extrudates offer significant potential for developing advanced functional food products.
- The study highlights the role of oil enrichment and chemical modification in tailoring starch-based materials.
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