Chapter 4. Antibacterial properties of polylactic acid composites for food packaging
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Leire Goñi-Ciaurriz
Abstract
Biopolymers emerge as a potential alternative to traditional petroleum-based polymers as they promote a circular economy based on sustainability. Polylactic acid (PLA) can be obtained from renewable agricultural sources, is recyclable and compostable, and displays good mechanical performance, comparable to that of some conventional plastics. Moreover, new food packaging line of research has focused not only on biodegradability but also on multifunctionality (intelligent and active packaging). PLAbased composites with antimicrobial activity are receiving considerable attention as promising materials to extend food shelf-life. Nanoparticles with antimicrobial activity are being widely used in the development of active packaging. As part of composite functional films, they contribute to protect food from spoilage microorganisms, and ensure food safety and freshness. In this work, the most novel research concerning the development of PLA-nanoparticulate systems (nanocomposites) with antibacterial activity intended for food packaging is compiled. Moreover, the main nanocomposite preparation methods, the antibacterial mechanisms of action, and the food safety assessments of these systems are included.
Abstract
Biopolymers emerge as a potential alternative to traditional petroleum-based polymers as they promote a circular economy based on sustainability. Polylactic acid (PLA) can be obtained from renewable agricultural sources, is recyclable and compostable, and displays good mechanical performance, comparable to that of some conventional plastics. Moreover, new food packaging line of research has focused not only on biodegradability but also on multifunctionality (intelligent and active packaging). PLAbased composites with antimicrobial activity are receiving considerable attention as promising materials to extend food shelf-life. Nanoparticles with antimicrobial activity are being widely used in the development of active packaging. As part of composite functional films, they contribute to protect food from spoilage microorganisms, and ensure food safety and freshness. In this work, the most novel research concerning the development of PLA-nanoparticulate systems (nanocomposites) with antibacterial activity intended for food packaging is compiled. Moreover, the main nanocomposite preparation methods, the antibacterial mechanisms of action, and the food safety assessments of these systems are included.
Chapters in this book
- Frontmatter I
- Contents V
- Contributing authors VII
- Chapter 1. Processing on polylactic acid and its applications 1
- Chapter 2. Polylactic acid-agave fiber biocomposites: processing, properties, weathering performance, and biodegradation 13
- Chapter 3. Polylactic acid composite materials for packaging and the consumption of food products 31
- Chapter 4. Antibacterial properties of polylactic acid composites for food packaging 73
- Chapter 5. Barrier properties of polylactic acid 101
- Chapter 6. Heat-sealing properties of polylactic acid and polylactic acid composites 123
- Chapter 7. Reactive extrusion of polylactic acid 141
- Chapter 8. Surface properties of polylactic acid–based composites 163
- Chapter 9. Study on mechanical properties of Himalayacalamus falconeri fiber-reinforced polylactic acid composites 181
- Chapter 10. The fabrication process of the pine needle fiber-reinforced polylactic acid composites 217
- Chapter 11. Development of novel hybrid green polymer composites (HGPC) with a combination of biowaste material as fillers 227
- Chapter 12. Joining behavior of bio-filler-based polyester composites 257
- Chapter 13. Dimensional analysis of 3D-printed knuckle joint and bearing pillow block 271
- Chapter 14. Processing and applications of silk fiber-reinforced biocomposite for tissue engineering 289
- Chapter 15. The development of silk fiber-, jute fiber-, Grewia optiva fiber-reinforced biopolymer composites 303
- Chapter 16. Machinability characteristics of pine needle fiber-reinforced polylactic acid composites 321
- Index 331
Chapters in this book
- Frontmatter I
- Contents V
- Contributing authors VII
- Chapter 1. Processing on polylactic acid and its applications 1
- Chapter 2. Polylactic acid-agave fiber biocomposites: processing, properties, weathering performance, and biodegradation 13
- Chapter 3. Polylactic acid composite materials for packaging and the consumption of food products 31
- Chapter 4. Antibacterial properties of polylactic acid composites for food packaging 73
- Chapter 5. Barrier properties of polylactic acid 101
- Chapter 6. Heat-sealing properties of polylactic acid and polylactic acid composites 123
- Chapter 7. Reactive extrusion of polylactic acid 141
- Chapter 8. Surface properties of polylactic acid–based composites 163
- Chapter 9. Study on mechanical properties of Himalayacalamus falconeri fiber-reinforced polylactic acid composites 181
- Chapter 10. The fabrication process of the pine needle fiber-reinforced polylactic acid composites 217
- Chapter 11. Development of novel hybrid green polymer composites (HGPC) with a combination of biowaste material as fillers 227
- Chapter 12. Joining behavior of bio-filler-based polyester composites 257
- Chapter 13. Dimensional analysis of 3D-printed knuckle joint and bearing pillow block 271
- Chapter 14. Processing and applications of silk fiber-reinforced biocomposite for tissue engineering 289
- Chapter 15. The development of silk fiber-, jute fiber-, Grewia optiva fiber-reinforced biopolymer composites 303
- Chapter 16. Machinability characteristics of pine needle fiber-reinforced polylactic acid composites 321
- Index 331
