Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules
The development of biobased antioxidant active packaging has been valued by the food industry for complying with environmental and food waste concerns. In this work, physicochemical properties for chitosan composite films as a potential active food packaging were investigated. Chitosan films were pr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/3/1507 |
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| author | Barbara E. Teixeira-Costa Willian Hermogenes Ferreira Francisco M. Goycoolea Brent S. Murray Cristina T. Andrade |
| author_facet | Barbara E. Teixeira-Costa Willian Hermogenes Ferreira Francisco M. Goycoolea Brent S. Murray Cristina T. Andrade |
| author_sort | Barbara E. Teixeira-Costa |
| collection | DOAJ |
| description | The development of biobased antioxidant active packaging has been valued by the food industry for complying with environmental and food waste concerns. In this work, physicochemical properties for chitosan composite films as a potential active food packaging were investigated. Chitosan films were prepared by solution casting, plasticized with a 1:2 choline chloride: glycerol mixture as a deep eutectic solvent (DES) and incorporated with 0–10% of optimized açaí oil polyelectrolyte complexes (PECs). Scanning electron microscopy and confocal laser scanning microscopy revealed that the chitosan composite films were continuous and contained well-dispersed PECs. The increased PECs content had significant influence on the thickness, water vapor permeability, crystallinity (CrD) and mechanical and dynamic behavior of the films, as well as their antioxidant properties. The tensile strength was reduced in the following order: 11.0 MPa (control film) > 0.74 MPa (5% DES) > 0.63 MPa (5% DES and 5% PECs). Films containing 2% of PECs had an increased CrD, ~6%, and the highest elongation at break, ~104%. Films with 1% of PECs displayed the highest antioxidant properties against the ABTS and DPPH radicals, ~6 and ~17 mg TE g<sup>−1</sup>, respectively, and highest equivalent polyphenols content (>0.5 mg GAE g<sup>−1</sup>). Films with 2% of particles were not significantly different. These results suggested that the chitosan films that incorporated 1–2% of microparticles had the best combined mechanical and antioxidant properties as a potential material for food packaging. |
| first_indexed | 2024-03-11T09:32:40Z |
| format | Article |
| id | doaj.art-b59aff5dc8314eac926a71e3ccf2aa6b |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T09:32:40Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-b59aff5dc8314eac926a71e3ccf2aa6b2023-11-16T17:33:31ZengMDPI AGMolecules1420-30492023-02-01283150710.3390/molecules28031507Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled MicrocapsulesBarbara E. Teixeira-Costa0Willian Hermogenes Ferreira1Francisco M. Goycoolea2Brent S. Murray3Cristina T. Andrade4Programa de Pós-Graduação em Biotecnologia-PPGBIOTEC, Faculdade de Ciências Agrárias, Universidade Federal do Amazonas, Avenida General Rodrigo Otávio 6200, Manaus 69077-000, AM, BrazilPrograma de Pós-Graduação em Ciência de Alimentos-PPGCAL, Instituto de Química, Universidade Federal do Rio de Janeiro, Avenida Moniz Aragão 360, Bloco 8G/CT2, Rio de Janeiro 21941-594, RJ, BrazilSchool of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UKSchool of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UKPrograma de Pós-Graduação em Ciência de Alimentos-PPGCAL, Instituto de Química, Universidade Federal do Rio de Janeiro, Avenida Moniz Aragão 360, Bloco 8G/CT2, Rio de Janeiro 21941-594, RJ, BrazilThe development of biobased antioxidant active packaging has been valued by the food industry for complying with environmental and food waste concerns. In this work, physicochemical properties for chitosan composite films as a potential active food packaging were investigated. Chitosan films were prepared by solution casting, plasticized with a 1:2 choline chloride: glycerol mixture as a deep eutectic solvent (DES) and incorporated with 0–10% of optimized açaí oil polyelectrolyte complexes (PECs). Scanning electron microscopy and confocal laser scanning microscopy revealed that the chitosan composite films were continuous and contained well-dispersed PECs. The increased PECs content had significant influence on the thickness, water vapor permeability, crystallinity (CrD) and mechanical and dynamic behavior of the films, as well as their antioxidant properties. The tensile strength was reduced in the following order: 11.0 MPa (control film) > 0.74 MPa (5% DES) > 0.63 MPa (5% DES and 5% PECs). Films containing 2% of PECs had an increased CrD, ~6%, and the highest elongation at break, ~104%. Films with 1% of PECs displayed the highest antioxidant properties against the ABTS and DPPH radicals, ~6 and ~17 mg TE g<sup>−1</sup>, respectively, and highest equivalent polyphenols content (>0.5 mg GAE g<sup>−1</sup>). Films with 2% of particles were not significantly different. These results suggested that the chitosan films that incorporated 1–2% of microparticles had the best combined mechanical and antioxidant properties as a potential material for food packaging.https://www.mdpi.com/1420-3049/28/3/1507polyelectrolyte complexes<i>Euterpe oleracea</i>bioactive coatingscholine chloridedeep eutectic solventfood packaging |
| spellingShingle | Barbara E. Teixeira-Costa Willian Hermogenes Ferreira Francisco M. Goycoolea Brent S. Murray Cristina T. Andrade Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules Molecules polyelectrolyte complexes <i>Euterpe oleracea</i> bioactive coatings choline chloride deep eutectic solvent food packaging |
| title | Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules |
| title_full | Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules |
| title_fullStr | Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules |
| title_full_unstemmed | Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules |
| title_short | Improved Antioxidant and Mechanical Properties of Food Packaging Films Based on Chitosan/Deep Eutectic Solvent, Containing Açaí-Filled Microcapsules |
| title_sort | improved antioxidant and mechanical properties of food packaging films based on chitosan deep eutectic solvent containing acai filled microcapsules |
| topic | polyelectrolyte complexes <i>Euterpe oleracea</i> bioactive coatings choline chloride deep eutectic solvent food packaging |
| url | https://www.mdpi.com/1420-3049/28/3/1507 |
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