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Lookup NU author(s): Hongwei Wang, Professor David XieORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2024 The AuthorsThis study examines the effects of flaxseed gum (FG) on the aggregate structure, pasting and rheological properties of waxy rice starch (WRS). Results display an increase in the ordered molecular structure (R1047/1024), relative crystallinity (RC), compactness (α), and microphase heterogeneity (ε, density degree of nanoaggregates, from 3.52 to 4.23) for WRS-FG complexes. These suggested FG facilitated the development of more organized molecular and crystalline structures of WRS, accompanied by the formation of ordered nanoaggregates with higher density (i.e., nano-aggregation structure). Also, FG addition resulted in the formation of enhanced gel network structure characterized by thicker layer walls and more uniform pores. These structural transformations contributed to a rise in gelatinization temperature (To, from 56.90 °C to 62.10 °C) and enthalpy (ΔH), as well as alterations in paste viscosities (PV, from 1285.00 mPa·s to 1734.00 mPa·s), and the rigidity of network structure (e.g., decreased loss tangent). These results indicate that FG could effectively regulate the techno-functional properties of WRS by rationally controlling the starch intrinsic structures of starch. And this study may improve the pasting and gelling properties of starch, thus driving the development of high-quality starchy foods and prolonging their shelf life, especially for glutinous rice flour products.
Author(s): Zhang X, Shen H, Qiao J, Li S, Yang X, Liu X, Zhang Y, Zhang H, Zhao X, Wang H, Xie F
Publication type: Article
Publication status: Published
Journal: International Journal of Biological Macromolecules
Year: 2024
Volume: 270
Issue: 1
Print publication date: 01/06/2024
Online publication date: 15/05/2024
Acceptance date: 14/05/2024
Date deposited: 30/05/2024
ISSN (print): 0141-8130
ISSN (electronic): 1879-0003
Publisher: Elsevier B.V.
URL: https://doi.org/10.1016/j.ijbiomac.2024.132421
DOI: 10.1016/j.ijbiomac.2024.132421
Data Access Statement: Data will be made available on request.
PubMed id: 38759854
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