Effects of low-temperature storage on the characteristics of wheat gluten

Authors

LEI Lei, College of Food Science and Engineering , Xinyang Agriculture and Forest University , Xinyang , Henan 464000 , China
WANG Ensheng, College of Food Science and Engineering , Xinyang Agriculture and Forest University , Xinyang , Henan 464000 , China
LIU Haibo, College of Food Science and Engineering , Xinyang Agriculture and Forest University , Xinyang , Henan 464000 , China
SANG Daxi, College of Food Science and Engineering , Xinyang Agriculture and Forest University , Xinyang , Henan 464000 , China
LI Kun, College of Food Science and Engineering , Xinyang Agriculture and Forest University , Xinyang , Henan 464000 , ChinaFollow

Corresponding Author(s)

李坤（1987—），男，信阳农林学院副教授，博士。E-mail：likunkm@163.com

Abstract

［Objective］ This study aimed to investigate the effects of low -temperature storage (3,6,9,12,15 days ) on the structural and functional properties of gluten proteins,including free sulfhydryl content,secondary structure,water -holding capacity,and rheological properties.［Methods］ Wheat gluten was stored at 4 ℃ and -18 ℃,and changes in free sulfhydryl groups,secondary structure,functional properties and rheological behavior were analyzed.［Results］］ Free sulfhydryl content increased with storage time,rising by 73.44% at 4 ℃ and 100.42% at -18 ℃ after 15 d compared to the control group.Prolonged low -temperature storage led to a decrease in α-helices and β-sheets,alongside an increase in β-turns and random coils in gluten proteins.Functional properties,including water holding capacity,oil holding capacity,emulsifying capacity,emulsifying stability,foaming capacity,and foaming capacity and stability,declined with extended storage.Additionally,gluten hardness increased,while the viscosity,elasticity,adhesiveness,cohesiveness and recovery gradually decreased.［Conclusion］ Low -temperature storage (4 ℃ and -18 ℃) significantly alters the structural characteristics of gluten proteins,leading to a deterioration in their functional properties.

Publication Date

2-18-2025

First Page

95

Last Page

101

DOI

10.13652/j.spjx.1003.5788.2024.80315

Recommended Citation

Lei, LEI; Ensheng, WANG; Haibo, LIU; Daxi, SANG; and Kun, LI (2025) "Effects of low-temperature storage on the characteristics of wheat gluten," Food and Machinery: Vol. 40: Iss. 12, Article 13.
DOI: 10.13652/j.spjx.1003.5788.2024.80315
Available at: https://www.ifoodmm.cn/journal/vol40/iss12/13

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