Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging

The impact of synthetic packaging on environmental pollution has been observed for years. One of the recent trends of green technology is the development of biomaterials made from food processing waste as an alternative to plastic packaging. Polymers obtained from some polysaccharides, such as chito...

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Main Authors: Natalia Wrońska, Nadia Katir, Marta Nowak-Lange, Abdelkrim El Kadib, Katarzyna Lisowska
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/18/3519
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author Natalia Wrońska
Nadia Katir
Marta Nowak-Lange
Abdelkrim El Kadib
Katarzyna Lisowska
author_facet Natalia Wrońska
Nadia Katir
Marta Nowak-Lange
Abdelkrim El Kadib
Katarzyna Lisowska
author_sort Natalia Wrońska
collection DOAJ
description The impact of synthetic packaging on environmental pollution has been observed for years. One of the recent trends of green technology is the development of biomaterials made from food processing waste as an alternative to plastic packaging. Polymers obtained from some polysaccharides, such as chitosan, could be an excellent solution. This study investigated the biodegradability of chitosan–metal oxide films (ZnO, TiO<sub>2</sub>, Fe<sub>2</sub>O<sub>3</sub>) and chitosan-modified graphene films (CS-GO-Ag) in a soil environment. We have previously demonstrated that these films have excellent mechanical properties and exhibit antibacterial activity. This study aimed to examine these films’ biodegradability and the possibility of their potential use in the packaging industry. The obtained results show that soil microorganisms were able to utilize chitosan films as the source of carbon and nitrogen, thus providing essential evidence about the biodegradability of CS, CS:Zn (20:1; 10:1), and CS:Fe<sub>2</sub>O<sub>3</sub> (20:1) films. After 6 weeks of incubation, the complete degradation of the CS-Fe<sub>2</sub>O<sub>3</sub> 20:1 sample was noted, while after 8 weeks, CS-ZnO 20:1 and CS-ZnO 10:1 were degraded. This is a very positive result that points to the practical aspect of the biodegradability of such films in soil, where garbage is casually dumped and buried. Once selected, biodegradable films can be used as an alternative to plastic packaging, which contributes to the reduction in pollution in the environment.
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spelling doaj.art-37aea2b3b1744ba28066230fefaf02e32023-11-19T10:44:20ZengMDPI AGFoods2304-81582023-09-011218351910.3390/foods12183519Biodegradable Chitosan-Based Films as an Alternative to Plastic PackagingNatalia Wrońska0Nadia Katir1Marta Nowak-Lange2Abdelkrim El Kadib3Katarzyna Lisowska4Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha Street, 90-236 Lodz, PolandEngineering Division, Euromed Research Center, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-Point de Bensouda, Fes 30070, MoroccoDepartment of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha Street, 90-236 Lodz, PolandEngineering Division, Euromed Research Center, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-Point de Bensouda, Fes 30070, MoroccoDepartment of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha Street, 90-236 Lodz, PolandThe impact of synthetic packaging on environmental pollution has been observed for years. One of the recent trends of green technology is the development of biomaterials made from food processing waste as an alternative to plastic packaging. Polymers obtained from some polysaccharides, such as chitosan, could be an excellent solution. This study investigated the biodegradability of chitosan–metal oxide films (ZnO, TiO<sub>2</sub>, Fe<sub>2</sub>O<sub>3</sub>) and chitosan-modified graphene films (CS-GO-Ag) in a soil environment. We have previously demonstrated that these films have excellent mechanical properties and exhibit antibacterial activity. This study aimed to examine these films’ biodegradability and the possibility of their potential use in the packaging industry. The obtained results show that soil microorganisms were able to utilize chitosan films as the source of carbon and nitrogen, thus providing essential evidence about the biodegradability of CS, CS:Zn (20:1; 10:1), and CS:Fe<sub>2</sub>O<sub>3</sub> (20:1) films. After 6 weeks of incubation, the complete degradation of the CS-Fe<sub>2</sub>O<sub>3</sub> 20:1 sample was noted, while after 8 weeks, CS-ZnO 20:1 and CS-ZnO 10:1 were degraded. This is a very positive result that points to the practical aspect of the biodegradability of such films in soil, where garbage is casually dumped and buried. Once selected, biodegradable films can be used as an alternative to plastic packaging, which contributes to the reduction in pollution in the environment.https://www.mdpi.com/2304-8158/12/18/3519biodegradable chitosan filmspackaging materialbioplastic
spellingShingle Natalia Wrońska
Nadia Katir
Marta Nowak-Lange
Abdelkrim El Kadib
Katarzyna Lisowska
Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging
Foods
biodegradable chitosan films
packaging material
bioplastic
title Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging
title_full Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging
title_fullStr Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging
title_full_unstemmed Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging
title_short Biodegradable Chitosan-Based Films as an Alternative to Plastic Packaging
title_sort biodegradable chitosan based films as an alternative to plastic packaging
topic biodegradable chitosan films
packaging material
bioplastic
url https://www.mdpi.com/2304-8158/12/18/3519
work_keys_str_mv AT nataliawronska biodegradablechitosanbasedfilmsasanalternativetoplasticpackaging
AT nadiakatir biodegradablechitosanbasedfilmsasanalternativetoplasticpackaging
AT martanowaklange biodegradablechitosanbasedfilmsasanalternativetoplasticpackaging
AT abdelkrimelkadib biodegradablechitosanbasedfilmsasanalternativetoplasticpackaging
AT katarzynalisowska biodegradablechitosanbasedfilmsasanalternativetoplasticpackaging