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10.3390/foods11223641
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Article

The Influence of Temperature Changes on the Rice Starch Structure and Digestive Characteristics: One and Two-Step Annealing

by
Guiyuan Xiang
1,
Jiangtao Li
1,*,
Wenfang Han
1,
Yaqin Yang
2,
Qinlu Lin
1,
Ying Yang
1,
Qiongxiang Liu
1,
Xiaofeng Guo
1,
Qianru Pan
1,
Zhengyu Huang
1 and
Lingxue Cao
3
1
National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
2
National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
3
Key Laboratory of National Forestry and Grassland Administration for Control of Diseases and Pests of South Plantation, Central South University of Forestry and Technology, Changsha 410004, China
*
Author to whom correspondence should be addressed.
Foods 2022, 11(22), 3641; https://doi.org/10.3390/foods11223641
Submission received: 25 October 2022 / Revised: 9 November 2022 / Accepted: 11 November 2022 / Published: 14 November 2022
(This article belongs to the Special Issue Green Processing of Starch: Structure, Function and Application in Food)
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Abstract

This study investigated the effects of annealing on the structural and physicochemical properties of rice starch below the onset temperature (To) by 5 °C and 15 °C. The results revealed that annealing improved the gelatinization temperature of rice starch, decreased the swelling power, solubility, and paste viscosity of rice starch, and had no significant effects on the morphological structure and crystal configuration of rice starch. In one-step annealing, the annealing temperature of 60 °C is more conducive to the rearrangement of starch molecules, so its crystallinity, short-range ordered structure, and gelatinization temperature are higher than at 50 °C; however, its RDS, SDS, and RS contents will be increased. During the two-step annealing treatment, the temperature change is not conducive to the molecular chain rearrangement and to the formation of perfect crystalline structure, which increases the sensitivity of enzymes to starch, so the RDS content of starch increases significantly, while the RS content decreases.
Keywords: starch structure; annealing temperature; digestibility starch structure; annealing temperature; digestibility

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MDPI and ACS Style

Xiang, G.; Li, J.; Han, W.; Yang, Y.; Lin, Q.; Yang, Y.; Liu, Q.; Guo, X.; Pan, Q.; Huang, Z.; et al. The Influence of Temperature Changes on the Rice Starch Structure and Digestive Characteristics: One and Two-Step Annealing. Foods 2022, 11, 3641. https://doi.org/10.3390/foods11223641

AMA Style

Xiang G, Li J, Han W, Yang Y, Lin Q, Yang Y, Liu Q, Guo X, Pan Q, Huang Z, et al. The Influence of Temperature Changes on the Rice Starch Structure and Digestive Characteristics: One and Two-Step Annealing. Foods. 2022; 11(22):3641. https://doi.org/10.3390/foods11223641

Chicago/Turabian Style

Xiang, Guiyuan, Jiangtao Li, Wenfang Han, Yaqin Yang, Qinlu Lin, Ying Yang, Qiongxiang Liu, Xiaofeng Guo, Qianru Pan, Zhengyu Huang, and et al. 2022. "The Influence of Temperature Changes on the Rice Starch Structure and Digestive Characteristics: One and Two-Step Annealing" Foods 11, no. 22: 3641. https://doi.org/10.3390/foods11223641

APA Style

Xiang, G., Li, J., Han, W., Yang, Y., Lin, Q., Yang, Y., Liu, Q., Guo, X., Pan, Q., Huang, Z., & Cao, L. (2022). The Influence of Temperature Changes on the Rice Starch Structure and Digestive Characteristics: One and Two-Step Annealing. Foods, 11(22), 3641. https://doi.org/10.3390/foods11223641

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