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

Lookup NU author(s): Professor David XieORCiD

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


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.


Publication metadata

Author(s): Liu T, Zhang B, Wang L, Zhao S, Qiao D, Zhang L, Xie F

Publication type: Article

Publication status: Published

Journal: International Journal of Biological Macromolecules

Year: 2021

Volume: 184

Pages: 804-811

Print publication date: 01/08/2021

Online publication date: 25/06/2021

Acceptance date: 18/06/2021

Date deposited: 31/08/2023

ISSN (print): 0141-8130

ISSN (electronic): 1879-0003

Publisher: Elsevier

URL: https://doi.org/10.1016/j.ijbiomac.2021.06.136

DOI: 10.1016/j.ijbiomac.2021.06.136


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Funding

Funder referenceFunder name
2018QNRC001
31701637
China Association for Science and Technology for the Young Elite Scientists Sponsorship Program
National Natural Science Foundation of China

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