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Comparative study of the effects of ultrasonic power on the structure and functional properties of gliadin in wheat and green wheat

文献类型： 外文期刊

作者： Zhang, Kangyi 1 ; Wen, Qingyu 1 ; Li, Tianqi 4 ; Wang, Yufei 5 ; Zhang, Yu 4 ; Luo, Denglin 6 ;

作者机构： 1.Henan Acad Agr Sci, Ctr Agr Prod Proc, Zhengzhou 450002, Peoples R China

2.Henan Int Joint Lab Whole Grain Wheat Prod Proc, Zhengzhou, Peoples R China

3.Henan Prov Whole Grain Fresh Food Proc Engn Techn, Zhengzhou, Peoples R China

4.Henan Ankang Food Sci & Technol Res Inst, Zhengzhou 450006, Peoples R China

5.North Univ China, Sch Chem Engn & Technol, Taiyuan, Peoples R China

6.Henan Univ Sci & Technol, Sch Food & Bioengn, Luoyang, Peoples R China

关键词： functional properties; green wheat gliadin; structure; ultrasonic; wheat gliadin

期刊名称：JOURNAL OF FOOD SCIENCE （ 影响因子：3.693； 五年影响因子：3.856 ）

ISSN： 0022-1147

年卷期： 2022 年 87 卷 3 期

页码：

收录情况： SCI

摘要： The impact of different ultrasonic power on the structure and functional properties of wheat gliadin (WG) and green wheat gliadin (GG) was investigated and compared. Ultrasound had no obvious effect on subunit composition and bands of WG and GG, and there were more small molecular weight bands in GG. The results of Fourier transform-infrared spectroscopy, intrinsic fluorescence spectroscopy, and scanning electron microscopy analyses demonstrated that ultrasonic treatment had a significant effect on the structure of WG and GG, inducing the transformation from order structure to disorder structure. The dispersion and uniformity were better at 400 and 300 W, respectively. Under proper ultrasonic treatment, the particle size of WG and GG was significantly reduced, and the free sulfhydryl groups and surface hydrophobicity were significantly increased (p < 0.05). Furthermore, the functional properties of WG and GG such as solubility, emulsification properties, water holding and oil holding properties, thermal stability, and digestibility were enhanced. The better functional properties of WG and GG were obtained at 400 and 300 W, respectively. These results indicated that ultrasonic treatment with appropriate power was a valuable method for improving functional characteristics of WG and GG. Practical Application Ultrasonic treatment could cause structural changes of wheat gliadin (WG) and green wheat gliadin (GG), and their functional properties are improved under appropriate power. This study compares the effects of ultrasound on WG and GG, and the results will provide theoretical guidance for the development of GG in the food industry.

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