Effect of basil essential oil and beeswax incorporation on the physical, structural, and antibacterial properties of chitosan emulsion based coating for eggs preservation
Effects on the physical properties of a chitosan (C) based emulsion by incorporating beeswax (BW) and basil essential oil (BEO) were investigated in this study. In addition, the structural and antibacterial properties of coatings produced from these emulsions and their egg preservation abilities wer...
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Veröffentlicht in: | Food science & technology 2021-10, Vol.150, p.112020, Article 112020 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Effects on the physical properties of a chitosan (C) based emulsion by incorporating beeswax (BW) and basil essential oil (BEO) were investigated in this study. In addition, the structural and antibacterial properties of coatings produced from these emulsions and their egg preservation abilities were studied. Dynamic light scattering experiments demonstrated that addition of 0.5% or 1% BEO decreased the droplet size of the emulsion and improved the stability of the coating. It was also observed that the coating surface produced by this emulsion was smoother using scanning electron microscopy. The FT-IR spectroscopy suggested that there was electrostatic interaction between BW and C and the interaction between BEO and both BW and C might be non-covalent. The addition of BW and BEO decreased the water vapor permeability and increased the contact angle of the C-BW-BEO composite coating. In summary, there was good compatibility between the various components of the C-BW-BEO coating emulsion. The addition of BW and 0.5% or 1% BEO enhanced the stability and water-blocking properties of the coating. Additionally, the composite coating showed antibacterial effects against the main bacteria on the eggshell surface and extended the shelf life of eggs.
•Addition of BW and BEO affected the properties of chitosan emulsion based coating.•Beeswax and BEO stabilized emulsions by forming three-dimensional networks.•Coatings with 0.5% and 1.0% BEO addition exhibited good water barrier properties.•BEO improved antibacterial activity of composite coatings applied to egg preservation. |
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ISSN: | 0023-6438 1096-1127 |
DOI: | 10.1016/j.lwt.2021.112020 |