Characterization of active films based on chitosan/polyvinyl alcohol integrated with ginger essential oil-loaded bacterial cellulose and application in sea bass (Lateolabrax japonicas) packaging.
In: Food Chemistry, Jg. 441 (2024-05-30), S. N.PAG
academicJournal
Zugriff:
This study aimed to develop chitosan (CS)/polyvinyl alcohol (PVA)-based biodegradable films with excellent properties by incorporating bacterial cellulose (BC) and ginger essential oil (GEO). The composite method between biopolymers was illustrated by Fourier Transform Infrared spectroscopy. And the effects of the addition of BC and GEO addition on the microstructure, mechanical properties, barrier properties, and antibacterial activity of the films were investigated. The results showed that the interactions among components in the CP/BC/GEO system were hydrogen bonds and strong electrostatic interactions. A more homogeneous and compact structure was observed by scanning electron microscopy, which improved the mechanical and barrier properties of the films. When BC was added, the tensile strength (TS) of the films was increased by 86.95%, and water vapor permeability (WVP) and oxygen permeability (OP) were significantly reduced by 17.11% and 2.94%, respectively. As GEO addition increased to 0.8%, the TS was enhanced by 26.55% and, WVP and OP were reduced by 20.19% and 49.44%, respectively. In addition, the films had effective antibacterial activity against Staphylococcus aureus , Escherichia coli , and Pseudomonas fluorescens. Finally, the application to sea bass preservation revealed that CPB 0.8 film had excellent antibacterial activity and barrier properties, which improved the quality and extend shelf-life of sea bass for 6 days at least. The bio-active films with enhanced properties are potential aquatic product packaging materials. [Display omitted] • There were non-covalent interactions and hydrogen bonds among the components. • 0.8 % w/w GEO led to more homogeneous structure in CPB film. • 0.8 % w/w GEO enhanced the mechanical and barrier properties of CPB film. • GEO 0.8 group could extend the shelf-life of sea bass for another 6 days at least. The poor mechanical properties, low water-resistance, and limited antimicrobial activity of chitosan (CS)/polyvinyl alcohol (PVA) based film limited its application in aquatic product preservation. Herein, bacterial cellulose (BC) was used to load ginger essential oil (GEO). The effects of the addition of BC and different concentrations of GEO on the physicochemical and antimicrobial activities of films were systematically evaluated. Finally, the application of sea bass fillets was investigated. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction analysis (XRD) analysis indicated dense networks were formed, which was verified by enhanced physical properties. The mechanical properties, barrier properties, and antimicrobial activities enhanced as GEO concentration increased. CPB 0.8 (0.8 % GEO) film had better tensile strength (TS) and barrier performance, improved the quality, and extended the shelf-life of sea bass for another 6 days at least. Overall, active films are potential packaging materials for aquatic products. [ABSTRACT FROM AUTHOR]
Titel: |
Characterization of active films based on chitosan/polyvinyl alcohol integrated with ginger essential oil-loaded bacterial cellulose and application in sea bass (Lateolabrax japonicas) packaging.
|
---|---|
Autor/in / Beteiligte Person: | Chen, Xuening ; Lan, Weiqing ; Xie, Jing |
Zeitschrift: | Food Chemistry, Jg. 441 (2024-05-30), S. N.PAG |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 0308-8146 (print) |
DOI: | 10.1016/j.foodchem.2023.138343 |
Schlagwort: |
|
Sonstiges: |
|