ArticleFoods (Basel, Switzerland)2026
Oleogels Based on Chickpea Protein Fractions-Xanthan Gum Complexes: Preparation and Characterization.
Article in Foods (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study investigated the mechanism by which different fractions of chickpea protein influenced the formation of oleogels. Total chickpea protein (CPP, 0.5 wt%), chickpea albumin (ALB, 0.5 wt%), globulin (GLO, 0.5 wt%), and glutelin (GLU, 0.5 wt%) were separately used as oleogelators by combining with xanthan gum (XG, 0.5 wt%) at pH 7 to construct soybean oil-based oleogels via the emulsion-templated method. Particle size measurement revealed that the GLU-XG (526 nm) exhibited the smallest particle size compared to CPP-XG (605 nm), ALB-XG (642 nm), and GLO-XG (819 nm). The four complexes exhibited increasing surface hydrophobicity and conformational flexibility (as revealed by fluorescence spectroscopy) in the order of GLO-XG < ALB-XG < CPP-XG < GLU-XG. Compared with other complexes, the higher surface hydrophobicity, smaller particle size, and more flexible structure of GLU-XG conferred a superior surface activity. Consequently, the fabricated emulsion demonstrated a smaller droplet size (13.91 μm) and enhanced centrifugal stability (94.64%). The confocal laser scanning microscope images confirmed that the oleogel based on GLU-XG exhibited the most uniform and densest network, leading to the highest oil-binding capacity (98.7%) and storage/loss modulus, followed by those based on CPP-XG (97.2%), ALB-XG (95.6%), and GLO-XG (93.9%). This research provides a theoretical basis for using chickpea protein in oleogel formulations and enhances understanding of the structural and interfacial properties of these protein fractions.
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