Interactions of soy protein isolate with common and waxy corn starches and their effects on acid-induced cold gelation properties of complexes

Chengbin Zhao; Zhenchi Miao; Qi Qi; Qihang Zheng; Yuxuan Mao; Zejun Chu; Hao Zhang; Xiuying Xu; Mingzhu Zheng; Jingsheng Liu

Food Chemistry: X (Jun 2023)

Interactions of soy protein isolate with common and waxy corn starches and their effects on acid-induced cold gelation properties of complexes

Chengbin Zhao,
Zhenchi Miao,
Qi Qi,
Qihang Zheng,
Yuxuan Mao,
Zejun Chu,
Hao Zhang,
Xiuying Xu,
Mingzhu Zheng,
Jingsheng Liu

Affiliations

Chengbin Zhao: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China; Corresponding authors at: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China.
Zhenchi Miao: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Qi Qi: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Qihang Zheng: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Yuxuan Mao: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Zejun Chu: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Hao Zhang: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Xiuying Xu: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Mingzhu Zheng: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
Jingsheng Liu: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China; Corresponding authors at: College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China.

Journal volume & issue: Vol. 18
p. 100671

Abstract

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Soy protein isolate (SPI) was mixed with different concentrations of common starch (CS) and waxy starch (WS) from corn. The interactions of SPI with CS or WS and their effects on the acid-induced cold gelation properties of complexes were investigated. Compared with WS, SPI could bind to CS more strongly and formed a tighter SPI–CS non-covalent complex, which resulted in the increased β-sheet and a more ordered secondary structure. The gel strength, water holding capacity (WHC), viscoelasticity, hydrophobic interactions and thermal stability of SPI–CS complex gels were enhanced as increasing CS concentration, and the complex with 2% of CS had the best gelation properties. Although adding WS reduced the gel strength, rheological properties and hydrophobic interactions of SPI–WS complex gels, it improved the WHC and thermal stability of the complex gels. Therefore, CS had a broader effect on improving acid-induced cold gelation properties of SPI than WS.

Published in Food Chemistry: X

ISSN: 2590-1575 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Home economics: Nutrition. Foods and food supply; Technology: Chemical technology: Food processing and manufacture
Website: https://www.journals.elsevier.com/food-chemistry-x

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