Development of poly(vinyl alcohol)/starch/ethyl lauroyl arginate blend films with enhanced antimicrobial and physical properties for active packaging

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Názov: Development of poly(vinyl alcohol)/starch/ethyl lauroyl arginate blend films with enhanced antimicrobial and physical properties for active packaging
Autori: Wu, F, Zhou, Z, Li, N, Chen, Y, Zhong, L, Law, WC, Tang, CY
Prispievatelia: Department of Industrial and Systems Engineering
Zdroj: International Journal of Biological Macromolecules. 192:389-397
Informácie o vydavateľovi: Elsevier BV, 2021.
Rok vydania: 2021
Predmety: Cassava starch, Chemical Phenomena, Food Packaging, Biocompatible Materials, Membranes, Artificial, Starch, 04 agricultural and veterinary sciences, Arginine, Ethyl lauroyl arginate (LAE), Poly(vinyl alcohol) (PVA), 3. Good health, 0404 agricultural biotechnology, Anti-Infective Agents, Polyvinyl Alcohol, Mechanical Phenomena
Popis: 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.
Druh dokumentu: Article
Jazyk: English
ISSN: 0141-8130
DOI: 10.1016/j.ijbiomac.2021.09.208
Prístupová URL adresa: https://pubmed.ncbi.nlm.nih.gov/34627849
https://www.sciencedirect.com/science/article/abs/pii/S014181302102136X
https://pubmed.ncbi.nlm.nih.gov/34627849/
Rights: Elsevier TDM
CC BY NC ND
Prístupové číslo: edsair.doi.dedup.....7e238521d176d1668a3302d74eeda943
Databáza: OpenAIRE
Popis
Abstrakt: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.
ISSN:01418130
DOI:10.1016/j.ijbiomac.2021.09.208