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Updated: Jan 27, 2026

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Effect of CaCl2 pre-treatment on the succinylation of potato starch
Jinwei Wang1, Fei Ren1, Hongjie Huang1
1State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, 300457, China.
Abstract:
Potato starch was pre-treated with CaCl2 solutions prior to modification with octenyl succinic anhydride (OSA). Starch pre-treated with 1.0 M CaCl2 showed higher degree of substitution (DS) and reaction efficiency (RE) on OSA modification, whereas pre-treatment with CaCl2 solutions at 0.05 M, 0.1 M and 0.5 M had no effect on DS and RE. CaCl2 pre-treatment decreased the swelling power, paste clarity, peak viscosity (PV), breakdown (BD) and some textural parameters of potato starch, with the effects being greater at higher concentrations of CaCl2. Pre-treatment with 1.0 M CaCl2 caused a small disruption to starch crystallinity and granule morphology. OSA modification significantly decreased the textural parameters, PV, BD, relative crystallinity, swelling power, gelatinization temperatures and enthalpy of potato starch, but it increased the paste clarity and emulsifying activity. OSA-1.0 M-starch showed improved functional properties over OSA-starch, indicating that CaCl2 pre-treatment provides advantages for improving the functional characters of succinylated starch.
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