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Updated: Jan 2, 2026

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Physicochemical and retrogradation properties of modified chestnut starches
Seon-Min Oh1, Hui-Yun Kim1, Ji-Eun Bae1
11Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea.
Abstract:
Physicochemical properties of acetylated (AC), cross-linked (CL), and hydroxypropylated (HP) chestnut starches were investigated. Modified chestnut starch showed low RS and amylose contents. AC revealed the highest solubility and HP showed the highest swelling power at 60 °C. CL showed the lowest solubility and swelling power at both 60 and 90 °C. AC and HP showed a lower pasting temperature and higher peak viscosity than native chestnut starch (NC). Modified chestnut starch formed gels at higher solid content than NC. CL had the lowest freeze-thaw stability, and AC and HP showed the strongest tolerance to freeze-thaw cycles. Amylopectin melting enthalpy of NC dramatically increased over the first 2 days and continued increasing gradually until day 24. On the other hand, all the modified chestnut starches showed a slight increase in amylopectin melting enthalpy, indicating retarded retrogradation. CL showed the lowest degree of retrogradation, followed by HP, AC, and NC.
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