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Development changes in multi-scale structure and functional properties of waxy corn starch at different stages of kernel growth
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Zheng, Bo, Guo, Xinbo, Tang, Yukuo, Chen, Ling and Xie, Fengwei (2021) Development changes in multi-scale structure and functional properties of waxy corn starch at different stages of kernel growth. International Journal of Biological Macromolecules, 191 . pp. 335-343. doi:10.1016/j.ijbiomac.2021.09.120 ISSN 0141-8130.
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Official URL: http://dx.doi.org/10.1016/j.ijbiomac.2021.09.120
Abstract
Waxy corn starch is widely used in food and papermaking industries due to its unique properties. In this work, the structural and functional properties of starch isolated from waxy corn at different stages of kernel growth were investigated and their relationships were clarified. The results showed that with kernel growth, the surface of starch granules became smooth gradually, and the inner growth rings and the porous structure grew and became clear. Meanwhile, the weight-average molecular mass (Mw), root mean square radius (Rg), and average particle size increased while the amylose content decreased, which should account for the decreased pasting temperature (from 71.37 to 67.44 °C) and increased peak viscosity (1574.2 to 1883.1 cp) and breakdown value observed. Besides, the contents of slowly digestible starch (SDS) and resistant starch (RS) in waxy corn starch decreased significantly (from 44.01% to 40.88% and from 16.73% to 9.80%, respectively, p < 0.05) due to decreases in the double helix content, crystallinity, and structural order, and increases in the semi-crystalline lamellae thickness and the amorphous content. This research provides basic data for the rational utilization of waxy corn starch at different stages of kernel growth.
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QK Botany S Agriculture > SB Plant culture T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||
Library of Congress Subject Headings (LCSH): | Cornstarch , Corn -- Development, Corn -- Composition, Corn products, Starch -- Structure-activity relationships, Starch -- Synthesis | ||||||||||||
Journal or Publication Title: | International Journal of Biological Macromolecules | ||||||||||||
Publisher: | Elsevier | ||||||||||||
ISSN: | 0141-8130 | ||||||||||||
Official Date: | 30 November 2021 | ||||||||||||
Dates: |
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Volume: | 191 | ||||||||||||
Page Range: | pp. 335-343 | ||||||||||||
DOI: | 10.1016/j.ijbiomac.2021.09.120 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
Date of first compliant deposit: | 24 September 2021 | ||||||||||||
Date of first compliant Open Access: | 21 September 2022 | ||||||||||||
RIOXX Funder/Project Grant: |
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