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Development of poly(vinyl alcohol)/starch/ethyl lauroyl arginate blend films with enhanced antimicrobial and physical properties for active packaging
- Source :
- International Journal of Biological Macromolecules. 192:389-397
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Active packaging films have emerged as alternatives to replace petroleum-based packaging materials. In this work, poly(vinyl alcohol) (PVA)/starch/ethyl lauroyl arginate (LAE) films possessing enhanced properties were prepared. Scanning electron microscopy (SEM) showed that PVA and starch were compatible, the concentrations of LAE greatly affected the structural integrity. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction showed that the inclusion of LAE did not significantly affect the intermolecular interactions and crystal structures of the polymer matrix. With an increase of the LAE content, the tensile strength (TS) was slightly decreased due to the altered microstructures, the elongation at break (EB) significantly increased ascribed to the synergistic effect of acetic acid, glycerol and LAE. The values of TS and EB were 17.25 MPa and 586.08%, respectively when LAE was 10%. Active films showed good barrier properties from UV while retaining the transmittance in the visible light region. The films containing 1% of LAE exhibited antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), the inhibition zone of bacterial growth gradually expanded with increasing LAE content. This study demonstrates the potential of using LAE as the antibacterial agent for synthesizing natural-based polymeric films for active packaging applications.
- Subjects :
- chemistry.chemical_classification
Vinyl alcohol
Chemical Phenomena
Starch
Food Packaging
Active packaging
Biocompatible Materials
Membranes, Artificial
General Medicine
Polymer
Arginine
Biochemistry
Acetic acid
chemistry.chemical_compound
Anti-Infective Agents
chemistry
Structural Biology
Polyvinyl Alcohol
Fourier transform infrared spectroscopy
Antibacterial activity
Molecular Biology
Mechanical Phenomena
Antibacterial agent
Nuclear chemistry
Subjects
Details
- ISSN :
- 01418130
- Volume :
- 192
- Database :
- OpenAIRE
- Journal :
- International Journal of Biological Macromolecules
- Accession number :
- edsair.doi.dedup.....7e238521d176d1668a3302d74eeda943