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Essential oils loaded-chitosan nanocapsules incorporation in biodegradable starch films: A strategy to improve fruits shelf life.
- Source :
-
International journal of biological macromolecules [Int J Biol Macromol] 2021 Oct 01; Vol. 188, pp. 628-638. Date of Electronic Publication: 2021 Aug 11. - Publication Year :
- 2021
-
Abstract
- Thermoplastic starch (TPS) films filled with chitosan nanocapsules (CN) containing essential oils (EO) were prepared aiming active packaging. Two different EOs were studied: Ho wood (H) and Cinnamon (C). Besides, different capsules concentrations were investigated (1, 3, and 5 wt%), and the films were evaluated by chemical structure, thermal stability, crystallinity, water vapor permeability, antimicrobial assays, and potential application for strawberry packaging. The TPS/CN-Ho wood films showed a strong interaction between chitosan-starch, mainly for 3 and 5 wt%, confirmed by XRD. The FT-Raman spectra of TPS/CN-Cinnamon film indicated that Cinnamon EO quickly migrated to starch films, probably due to the new crystal structure, named C-type, affecting the film's water permeability. The addition of 1 and 3 wt% CN loaded with Ho wood or Cinnamon EO to the films decreased the water permeability. 3 wt% CN was the optimum concentration to inhibit the Escherichia coli or Bacillus subtillis growth on the films, confirming their biological activity. The films' preservation properties were evaluated using strawberries, and films with 1 or 3 wt% loaded-CN could extend the strawberries' shelf life without fungi contamination. The developed TPS films can be used as active food packaging or other films for biomedical or pharmaceutical applications.<br /> (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Subjects :
- Biodegradable Plastics chemistry
Chitosan chemical synthesis
Cinnamomum zeylanicum chemistry
Escherichia coli drug effects
Fruit standards
Microbial Sensitivity Tests
Oils, Volatile chemical synthesis
Oils, Volatile chemistry
Starch chemistry
Biodegradable Plastics pharmacology
Chitosan chemistry
Food Storage
Nanocapsules chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1879-0003
- Volume :
- 188
- Database :
- MEDLINE
- Journal :
- International journal of biological macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 34389394
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2021.08.046