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Modified polysaccharides for food packaging applications: A review.
Weronika Janik1, Łukasz Jakubski2, Stanisław Kudła3
1Łukasiewicz Research Network - Institute of Heavy Organic Synthesis "Blachownia", Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland; Department of Physical Chemistry and Technology of Polymers, Joint Doctoral School, Silesian University of Technology, Akademicka 2a, 44-100 Gliwice, Poland.
Developing eco-friendly food packaging from modified polysaccharides like starch and cellulose offers a sustainable alternative to plastics. This review details modification strategies to enhance material properties for biodegradable films and coatings.
Area of Science:
- Materials Science
- Food Science
- Environmental Science
Background:
- Single-use plastics pose significant environmental challenges, necessitating sustainable alternatives in food packaging.
- Polysaccharides offer a biodegradable, economically viable, and environmentally friendly option for food packaging materials.
- While biopolymer modifications are studied, polysaccharides remain underexplored for packaging applications.
Purpose of the Study:
- To review and discuss recent research on modifying polysaccharides for food packaging films and coatings.
- To highlight the impact of modifications on polysaccharide properties, including hydrophilic, barrier, and mechanical characteristics.
- To provide a guide for selecting modification methods to improve specific material properties.
Main Methods:
- Review of recent scientific literature on polysaccharide modification for food packaging.
- Focus on modifications of starch, chitosan, sodium alginate, and cellulose.
- Analysis of how modifications influence hydrophilic, barrier, and mechanical properties.
Main Results:
- Polysaccharide modifications significantly alter material properties and usability for packaging.
- Specific modification approaches can enhance or detrimentally affect properties like hydrophilicity, barrier function, and mechanical strength.
- The review categorizes modifications by polysaccharide type and resulting property changes.
Conclusions:
- Modified polysaccharides present a promising avenue for developing biodegradable food packaging.
- Understanding modification-property relationships is key to optimizing polysaccharide-based materials.
- Further research into polysaccharide modifications can lead to effective and sustainable packaging solutions.
