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Updated: May 31, 2026

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
Published on: August 4, 2017
Different hydrocolloids affect the gel and structural properties of water chestnut starch through hydrogen bonding
Xinyu Lv1, Jiaxin Gong1, Xin Qi1
1State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, China.
Abstract:
Non-covalent interactions are crucial in starch-polysaccharide composite systems. This study explored the mechanisms of hydrogen bonding and electrostatic interactions in water chestnut starch complexes with carrageenan, tamarind seed polysaccharide and xanthan gum. Urea significantly increased the viscosity of all three gels, while NaCl reduced the peak viscosity (PV) in water chestnut starch-carrageenan and water chestnut starch-tamarind seed polysaccharide but had the opposite effect on water chestnut starch-xanthan gum. Rheological tests indicated that urea decreased the gel strength and storage modulus (G') of all three systems. Urea also increased particle size and free water content, particularly in water chestnut starch-xanthan gum. Low concentrations of NaCl promoted wall thickening and surface smoothing in the gel network. In the hydrogen bonding that contributes to gel stability, intermolecular hydrogen bonds play a dominant role. These findings provide a theoretical foundation for developing water chestnut starch-based textured foods.
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