Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure
The petroleum-based materials could be replaced, at least partially, by biodegradable packaging. Adding antimicrobial activity to the new packaging materials can also help improve the shelf life of food and diminish the spoilage. The objective of this research was to obtain a novel antibacterial pac...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Pharmaceutics |
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| Online Access: | https://www.mdpi.com/1999-4923/13/7/1020 |
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| author | Ludmila Motelica Denisa Ficai Ovidiu Oprea Anton Ficai Roxana-Doina Trusca Ecaterina Andronescu Alina Maria Holban |
| author_facet | Ludmila Motelica Denisa Ficai Ovidiu Oprea Anton Ficai Roxana-Doina Trusca Ecaterina Andronescu Alina Maria Holban |
| author_sort | Ludmila Motelica |
| collection | DOAJ |
| description | The petroleum-based materials could be replaced, at least partially, by biodegradable packaging. Adding antimicrobial activity to the new packaging materials can also help improve the shelf life of food and diminish the spoilage. The objective of this research was to obtain a novel antibacterial packaging, based on alginate as biodegradable polymer. The antibacterial activity was induced to the alginate films by adding various amounts of ZnO nanoparticles loaded with citronella (lemongrass) essential oil (CEO). The obtained films were characterized, and antibacterial activity was tested against two Gram-negative (<i>Escherichia coli</i> and <i>Salmonella</i> Typhi) and two Gram-positive (<i>Bacillus cereus</i> and <i>Staphylococcus aureus</i>) bacterial strains. The results suggest the existence of synergy between antibacterial activities of ZnO and CEO against all tested bacterial strains. The obtained films have a good antibacterial coverage, being efficient against several pathogens, the best results being obtained against <i>Bacillus cereus</i>. In addition, the films presented better UV light barrier properties and lower water vapor permeability (WVP) when compared with a simple alginate film. The preliminary tests indicate that the alginate films with ZnO nanoparticles and CEO can be used to successfully preserve the cheese. Therefore, our research evidences the feasibility of using alginate/ZnO/CEO films as antibacterial packaging for cheese in order to extend its shelf life. |
| first_indexed | 2024-03-10T09:28:13Z |
| format | Article |
| id | doaj.art-200e8088c2624a2fa515f31ed094fca1 |
| institution | Directory Open Access Journal |
| issn | 1999-4923 |
| language | English |
| last_indexed | 2024-03-10T09:28:13Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Pharmaceutics |
| spelling | doaj.art-200e8088c2624a2fa515f31ed094fca12023-11-22T04:40:48ZengMDPI AGPharmaceutics1999-49232021-07-01137102010.3390/pharmaceutics13071020Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial StructureLudmila Motelica0Denisa Ficai1Ovidiu Oprea2Anton Ficai3Roxana-Doina Trusca4Ecaterina Andronescu5Alina Maria Holban6Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaThe petroleum-based materials could be replaced, at least partially, by biodegradable packaging. Adding antimicrobial activity to the new packaging materials can also help improve the shelf life of food and diminish the spoilage. The objective of this research was to obtain a novel antibacterial packaging, based on alginate as biodegradable polymer. The antibacterial activity was induced to the alginate films by adding various amounts of ZnO nanoparticles loaded with citronella (lemongrass) essential oil (CEO). The obtained films were characterized, and antibacterial activity was tested against two Gram-negative (<i>Escherichia coli</i> and <i>Salmonella</i> Typhi) and two Gram-positive (<i>Bacillus cereus</i> and <i>Staphylococcus aureus</i>) bacterial strains. The results suggest the existence of synergy between antibacterial activities of ZnO and CEO against all tested bacterial strains. The obtained films have a good antibacterial coverage, being efficient against several pathogens, the best results being obtained against <i>Bacillus cereus</i>. In addition, the films presented better UV light barrier properties and lower water vapor permeability (WVP) when compared with a simple alginate film. The preliminary tests indicate that the alginate films with ZnO nanoparticles and CEO can be used to successfully preserve the cheese. Therefore, our research evidences the feasibility of using alginate/ZnO/CEO films as antibacterial packaging for cheese in order to extend its shelf life.https://www.mdpi.com/1999-4923/13/7/1020biodegradablealginate filmantibacterial packagingcitronella essential oilzinc oxide nanoparticlesedible packaging |
| spellingShingle | Ludmila Motelica Denisa Ficai Ovidiu Oprea Anton Ficai Roxana-Doina Trusca Ecaterina Andronescu Alina Maria Holban Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure Pharmaceutics biodegradable alginate film antibacterial packaging citronella essential oil zinc oxide nanoparticles edible packaging |
| title | Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure |
| title_full | Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure |
| title_fullStr | Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure |
| title_full_unstemmed | Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure |
| title_short | Biodegradable Alginate Films with ZnO Nanoparticles and Citronella Essential Oil—A Novel Antimicrobial Structure |
| title_sort | biodegradable alginate films with zno nanoparticles and citronella essential oil a novel antimicrobial structure |
| topic | biodegradable alginate film antibacterial packaging citronella essential oil zinc oxide nanoparticles edible packaging |
| url | https://www.mdpi.com/1999-4923/13/7/1020 |
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