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Active Flexible Films for Food Packaging: A Review
Ana G Azevedo1, Carolina Barros2, Sónia Miranda3
1International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal.
Polymers
|June 24, 2022
Summary
Active food packaging utilizes innovative materials to extend shelf life. This review details methods for incorporating active agents into flexible films, addressing industrial production challenges.
Area of Science:
- Materials Science
- Food Science
- Polymer Science
Background:
- Active food packaging aims to enhance food preservation and extend shelf life through innovative materials.
- Current challenges include integrating active agents into polymer matrices without compromising their efficacy or processability.
- The development of economically viable and industrially compatible active packaging solutions is a key focus.
Purpose of the Study:
- To provide a comprehensive overview of methodologies for producing active flexible packaging films at an industrial scale.
- To discuss the challenges associated with incorporating active agents into polymer-based packaging.
- To guide researchers in selecting appropriate materials and processing conditions for active packaging development.
Main Methods:
- Review of direct incorporation of active agents into polymer films, considering processing conditions.
- Exploration of coating technologies for applying active agents to packaging surfaces.
- Discussion of supercritical fluid impregnation as a method for incorporating active agents.
- Examination of carrier systems to facilitate the integration of active agents.
Main Results:
- Direct incorporation methods require careful control of processing conditions to maintain active agent integrity.
- Coating technologies offer an alternative for applying sensitive active agents.
- Supercritical impregnation and carrier-based approaches present viable strategies for overcoming dispersion and stability issues.
- Successful industrial-level production depends on balancing active agent performance with processing feasibility.
Conclusions:
- Effective active flexible packaging requires strategic selection of materials and incorporation methodologies.
- Addressing challenges related to active agent stability and dispersion is crucial for industrial application.
- This review offers insights into optimizing processes for developing advanced active packaging solutions.
