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Microwave reheating increases the resistant starch content in cooked rice with high water contents

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Liu, Ting, Zhang, Binjia, Wang, Lili, Zhao, Siming, Qiao, Dongling, Zhang, Liang and Xie, Fengwei (2021) Microwave reheating increases the resistant starch content in cooked rice with high water contents. International Journal of Biological Macromolecules, 184 . pp. 804-811. doi:10.1016/j.ijbiomac.2021.06.136

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WRAP-microwave-reheating-increases-resistant-starch-content-cooked-rice-high-water-Xie-2021  .pdf - Accepted Version
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Official URL: http://dx.doi.org/10.1016/j.ijbiomac.2021.06.136

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Abstract

This study explored how microwave reheating (to about 73 °C at different power levels) affects the microstructure and digestion characteristics of cooked rice with different water contents (1.1 and 1.5 times that of rice in weight). Irrespective of water content, mainly the V-type crystallites remained after microwaving reheating, with slight changes in other multi-scale structural features. Only at a relatively high water content (1.5) and with a power level high enough could short-range order be reduced. Such microwave reheating increased the digestion resistance of cooked rice. At a water content of 1.1 times, increasing the microwave power led to a decreased rapid digestible starch (RDS) content and an increased resistant starch (RS) content. With a higher water content (1.5), the enhancement of digestion resistance with higher microwave power was less significant but still, a reduced slowly digestible starch (SDS) content and a higher RS content were observed.

Item Type: Journal Article
Subjects: S Agriculture > SB Plant culture
T Technology > TP Chemical technology
Divisions: Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Rice, Rice -- Analysis, Rice -- Composition, Starch, Rice -- Adaptation
Journal or Publication Title: International Journal of Biological Macromolecules
Publisher: Elsevier
ISSN: 0141-8130
Official Date: 1 August 2021
Dates:
DateEvent
1 August 2021Published
25 June 2021Available
18 June 2021Accepted
Volume: 184
Page Range: pp. 804-811
DOI: 10.1016/j.ijbiomac.2021.06.136
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
2018QNRC001China Association for Science and Technologyhttp://dx.doi.org/10.13039/100010097
31701637[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809

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