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Article

The Preparation and Characterization of Quantum Dots in Polysaccharide Carriers (Starch/Chitosan) as Elements of Smart Packaging and Their Impact on the Growth of Microorganisms in Food

1
Faculty of Food Technology, University of Agriculture in Krakow, Balicka Str. 122, 30-149 Krakow, Poland
2
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek Str. 8, 30-239 Krakow, Poland
*
Authors to whom correspondence should be addressed.
Academic Editor: Yury A. Skorik
Materials 2021, 14(24), 7732; https://doi.org/10.3390/ma14247732
Received: 6 November 2021 / Revised: 11 December 2021 / Accepted: 12 December 2021 / Published: 15 December 2021
(This article belongs to the Special Issue Advances in Polysaccharide Biomaterials—Volume II)
Nanocomposite materials are increasingly commonly used to ensure food safety and quality. Thanks to their unique properties, stemming from the presence of nanoparticles, they are used to develop advanced sensors and biosensors, e.g., for various harmful substances, heavy metals, microorganism growth, and environmental changes in food products. The aim of this study is to produce novel films based on natural resources—potato starch and chitosan—incorporating generated quantum dots of zinc sulfide and cadmium sulfide. The biocomposites were subjected to the following assays: FTIR spectroscopy, UV-VIS spectroscopy, photoluminescence spectroscopy, and SEM/TEM spectroscopy. Their mechanical properties were also analyzed, a colorimetric analysis was performed, and the water content, solubility, and water absorption capacity were determined. A storage test was also performed, using poultry meat covered with the produced films, to assess the microbiological quality. The results confirmed the presence of the quantum dots in the starch–chitosan matrix. The unique optical properties of the films were also demonstrated. It was shown that the composites with nanoparticles limited the growth of selected microorganisms in poultry meat. The food storage time was found to have an impact on the fluorescent properties of the composites. The results point to the possibility of using the produced films as active and smart packaging. View Full-Text
Keywords: starch; chitosan; quantum dots; smart packaging starch; chitosan; quantum dots; smart packaging
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MDPI and ACS Style

Grzebieniarz, W.; Nowak, N.; Khachatryan, G.; Krzan, M.; Krystyjan, M.; Kosiński, J.; Khachatryan, K. The Preparation and Characterization of Quantum Dots in Polysaccharide Carriers (Starch/Chitosan) as Elements of Smart Packaging and Their Impact on the Growth of Microorganisms in Food. Materials 2021, 14, 7732. https://doi.org/10.3390/ma14247732

AMA Style

Grzebieniarz W, Nowak N, Khachatryan G, Krzan M, Krystyjan M, Kosiński J, Khachatryan K. The Preparation and Characterization of Quantum Dots in Polysaccharide Carriers (Starch/Chitosan) as Elements of Smart Packaging and Their Impact on the Growth of Microorganisms in Food. Materials. 2021; 14(24):7732. https://doi.org/10.3390/ma14247732

Chicago/Turabian Style

Grzebieniarz, Wiktoria, Nikola Nowak, Gohar Khachatryan, Marcel Krzan, Magdalena Krystyjan, Jarosław Kosiński, and Karen Khachatryan. 2021. "The Preparation and Characterization of Quantum Dots in Polysaccharide Carriers (Starch/Chitosan) as Elements of Smart Packaging and Their Impact on the Growth of Microorganisms in Food" Materials 14, no. 24: 7732. https://doi.org/10.3390/ma14247732

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