Volume 18, Issue 111 (2021)                   FSCT 2021, 18(111): 169-188 | Back to browse issues page

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Hosseini N, pirsa S, Farzi J. Biodegradable film of modified starch/albumin containing magnesium oxide nanoparticles; Investigation of color, transparency, mechanical, and calorimetry properties. FSCT 2021; 18 (111) :169-188
URL: http://fsct.modares.ac.ir/article-7-46276-en.html
1- epartment of Food Science and Technology, Afagh Institute of Higher Education, Urmia, Iran.
2- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran. , pirsa7@gmail.com
Abstract:   (1083 Views)
In this study, 19 samples of biodegradable films using modified starch (0-2 g), albumin (2-0 g), nanoparticles of magnesium oxide (0-5%), were prepared and physicochemical properties including colorimetric, transparency, mechanical, calorimetry and morphological properties were investigated. Addition of magnesium nanoparticles to modified starch-based nanocomposite films and albumin decreased the transparency and increased the opacity of the films and increased the a, b and YI index, indicating an increase in yellow color in films containing high concentrations of MgO nanoparticles and an increase in E film. The addition of MgO nanoparticles to them also improved the strength and mechanical properties of the films (tensile strength and strain to breaking point). Films containing magnesium oxide nanoparticles showed an increase in glass transition temperature, a melting temperature and a decrease in crystallization temperature; Which confirms the positive effect of MgO nanoparticles on increasing the thermal stability of nanobiocomposite films. SEM images of the produced films showed a heterogeneous level in films containing magnesium oxide nanoparticles compared to films without nanoparticles.
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Article Type: Original Research | Subject: Packing and all types of coatings in the food industry
Received: 2020/09/23 | Accepted: 2020/11/24 | Published: 2021/04/30

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