Fabrication and Characterization of PLA-Based Composite Films Incorporated With Copper Oxide Nanoparticles and Lavender Essential Oil
This study explores the development of poly (lactic acid) (PLA) composite films enhanced with copper oxide nanoparticles (CuONPs) and lavender essential oil (LEO), aiming to advance active packaging solutions. The research integrates varying concentrations of CuONPs and LEO into PLA films, to evalua...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/ijps/5572473 |
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| Summary: | This study explores the development of poly (lactic acid) (PLA) composite films enhanced with copper oxide nanoparticles (CuONPs) and lavender essential oil (LEO), aiming to advance active packaging solutions. The research integrates varying concentrations of CuONPs and LEO into PLA films, to evaluate their potential for improving food preservation and safety. Extensive evaluations of their mechanical, barrier, and antimicrobial properties were conducted. Scanning electron microscopy revealed a homogeneous distribution of CuONPs and LEO within the PLA matrix, which led to a significant increase in the films’ tensile strength, improving it by up to 39.8%. Additionally, the films showed significant antimicrobial effects: After 12 h, the PLA film with 2% CuONPs and 2% LEO reduced L. monocytogenes to 3.7 log CFU/mL and E. coli O157: H7 to 2 log CFU/mL. The barrier properties of the films also showed substantial improvements; they exhibited a 71.4% increase in UV resistance and a 35.7% improvement in oxygen barrier performance, which are essential for protecting light-sensitive and oxygen-sensitive food items. Among the formulations tested, the PLA/CuONPs2%/LEO2% composite emerged as the most effective, showing optimal performance in all tested parameters. This comprehensive approach underscores the potential of CuONPs and LEO-enhanced PLA films as promising materials for sustainable, active food packaging solutions that not only effectively reduce food waste but also enhance food safety. |
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| ISSN: | 1687-9430 |