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Updated: Mar 7, 2026

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Insights into the Formation and Structures of Starch-Protein-Lipid Complexes
Shujun Wang1, Mengge Zheng1, Jinglin Yu2
1Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science & Technology , Tianjin 300457, China.
Abstract:
The aim of the present study was to characterize the multiscale structures of ternary complexes of a model system of starch, fatty acid (FA), and β-lactoglobulin (βLG) prepared using a Rapid Visco Analyzer (RVA). The addition of βLG to starch-lauric acid or starch-oleic acid RVA pastes resulted in the increased intensity or occurrence of a new viscosity peak during cooling when the RVA protocol was repeated. The viscosity peak was attributed to the formation of starch-βLG-FA complexes. Differential scanning calorimetry (DSC) results showed clearly that the starch-βLG-FAs complex was formed as gelatinized starch was cooled in the presence of βLG and FAs. The results of Raman, FTIR, and X-ray diffraction analyses showed that starch can interact with βLG and FAs to form a ternary V-type crystalline complex, which had a greater short-range molecular order and higher relative crystallinity compared with those of the binary starch-FA complex. The present study provided insights into the structure of a model starch-protein-fatty acid complex as an example of what might occur during food processing.
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