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Updated: Jan 26, 2026

Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
Published on: July 3, 2020
Thermal, Structural, and Rheological Characterization of Waxy Starch as a Cryogel for Its Application in Food
Jonathan Coria-Hernández1, Abraham Méndez-Albores2, Rosalía Meléndez-Pérez3
1National Autonomous University of Mexico-Superior Studies Faculty at Cuautitlan (UNAM-FESC), Doctorate Program in Animal Production and Health Sciences, Cuautitlan Izcalli 54714, Mexico. jonathancoria@outlook.com.
Abstract:
Starch is the major component of cereal, pulses, and root crops. Starch consists of two kinds of glucose polymers, amylose and amylopectin. Waxy starch-with 99⁻100% amylopectin-has distinctive properties, which define its functionality in many food applications. In this research, a novel material was prepared through the cryogelification of waxy starch (WS) using four cycles of freezing and thawing in indirect contact with liquid nitrogen at -150 °C. Polyvinyl alcohol (PVA) was used as a reference. The cryogels were characterized using several validation methodologies: modulated differential scanning calorimetry (MDSC), scanning electron microscopy (SEM), rheology, and Fourier transform infrared (FTIR) spectroscopy with diffuse reflectance (DR). Based on the number of freeze⁻thaw cycles, significant changes were found (P < 0.05) showing important structural modifications as well as reorganization of the polymeric matrix. Two cryogelification cycles of the WS were enough to obtain the best structural and functional characteristics, similar to those of PVA, which has already been tested as a cryogel. From these results, it is concluded that WS has potential as a cryogel for application in food processing.
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