Effects of Matrices on the Structure and Properties of Composite Films of Soy Protein Isolates/Xanthan Gum

被引：2

作者：

Gao, Jie ^{[1
]}

Zeng, Xinyu ^{[1
]}

Xue, Yixuan ^{[1
]}

Zhao, Ping ^{[1
]}

Zhao, Ying ^{[2
]}

Liu, Xiaochun ^{[1
]}

Wang, Rui ^{[1
]}

Liu, Bing ^{[1
]}

He, Haining ^{[3
]}

机构：

[1] School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou

[2] Institute of Biotechnology, Gansu Academy of Agricultural Science, Lanzhou

[3] Gansu Institute of Business and Technology, Lanzhou

来源：

Science and Technology of Food Industry | 2024年 / 45卷 / 21期

关键词：

composite film; matrices; mechanical property; soy protein isolate; xanthan gum;

D O I：

10.13386/j.issn1002-0306.2023110158

中图分类号：

学科分类号：

摘要：

The structures and properties of the composite films formed by soy protein isolate (SPI) and xanthan gum (XG) with different other matrices were investigated. The composite films were prepared with SPI and XG by adding sodium alginate (SA), carboxymethyl cellulose (CMC), gelatin (GEL), pectin (PEC) and agar (Agar), respectively. The thickness, mechanical properties, oxygen permeability and opacity of the composite films were measured, and their structures were characterized. The results showed that the thicknesses of composite films with 1.5 g of different other matrices were significantly higher (P<0.05) than the film of SPI/XG, and the maximum tensile strength was 5.90±0.32 MPa for SPI/XG-Agar film (P<0.05), the oxygen permeabilities of them were significantly reduced (P<0.05), and the lowest opacity was 0.45±0.09 Abs600/mm for SPI/XG-Agar film (P<0.05). The photograph of SEM showed that the surface of SPI/XG-Agar composite film was flat, smooth and free of particles, while the other composite films were with particles and folds on the surface. The infrared spectroscopy analysis showed that there was good compatibility between all the matrices. The results of tensile strength, opacity and SEM for the SPI/XG-Agar film were superior to other films. © The Author(s) 2024.

引用

页码：1 / 9

页数：8

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