Nanometals incorporation into active and biodegradable chitosan films
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Date
2024-04-15
Authors
Dordević, Simona
Dordevič, Dani
Těšíková, Karolína
Sedláček, Petr
Kalina, Michal
Vápenka, Lukáš
Nejezchlebová, Marcela
Treml, Jakub
Tremlová, Bohuslava
Mikulášková, Hana
0000-0002-6211-9643Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
CELL PRESS
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Abstract
This study investigates the effects of incorporating ZnO, TiO2, and colloidal Ag nanoparticles on the antioxidant, antimicrobial, and physical properties of biodegradable chitosan films. The research focuses on addressing the growing demand for sustainable packaging solutions that offer efficient food preservation while mitigating environmental concerns. In this investigation, the physical properties including thickness, water content, solubility, swelling degree, tensile strength, and elasticity of the chitosan films were examined. Additionally, the samples were analyzed for total polyphenol content, antimicrobial activity, and antioxidant capacity. Notably, the incorporation of ZnO nanoparticles led to the lowest water content and highest strength values among the tested films. Conversely, the addition of colloidal Ag nanoparticles resulted in films with the highest antioxidant capacities (DPPH: 32.202 +/- 1.631 %). Remarkably, antimicrobial tests revealed enhanced activity with the inclusion of colloidal silver nanoparticles, yet the most potent antimicrobial properties were observed in films containing ZnO (E.coli: 2.0 +/- 0.0 mm; MRSA: 2.0 +/- 0.5 mm). The findings of this study hold significant implications for the advancement of edible biodegradable films, offering potential for more efficient food packaging solutions that address environmental sustainability concerns. By elucidating the effects of nanoparticle incorporation on film properties, this research contributes to the ongoing discourse surrounding sustainable packaging solutions in the food industry.
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Citation
Heliyon. 2024, vol. 10, issue 7, 15 p.
https://www.sciencedirect.com/science/article/pii/S240584402404461X?via%3Dihub
https://www.sciencedirect.com/science/article/pii/S240584402404461X?via%3Dihub
Document type
Peer-reviewed
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Published version
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Language of document
en
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Defence
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Document licence
Creative Commons Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
http://creativecommons.org/licenses/by-nc/4.0/