Active packaging gelatin films based on chitosan/Arabic gum/coconut oil Pickering nano emulsions

This investigation intended at fabricating gelatin active packaging films based on nano‐sized droplets of coconut oil emulsified by Pickering emulsion (PE) using chitosan/Arabic gum (CH/AG) nanoparticles (NPs) as a stabilizer and in the presence of titanium dioxide NP (TiO2 NPs) as an extra antimicr...

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Bibliographic Details
Published in:Journal of applied polymer science 2022-01, Vol.139 (1), p.n/a
Main Authors: Sultan, Maha, Elsayed, Hamed, Abdelhakim, Abou El Fettouh, Taha, Ghada
Format: Article
Language:English
Subjects:
Antimicrobial agents
Antioxidants
biodegradable
biomaterials
Chitosan
Coconut oil
Contact angle
Emulsions
Fungicides
Gelatin
Materials science
Mechanical properties
Morphology
Nanoparticles
Packaging
Polymers
polysaccharides
Scavenging
Titanium dioxide
Water vapor
Wettability
Zeta potential
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Summary:This investigation intended at fabricating gelatin active packaging films based on nano‐sized droplets of coconut oil emulsified by Pickering emulsion (PE) using chitosan/Arabic gum (CH/AG) nanoparticles (NPs) as a stabilizer and in the presence of titanium dioxide NP (TiO2 NPs) as an extra antimicrobial agent. The developed films were characterized by attenuated total reflectance–Fourier transmittance infrared, X‐ray diffraction, and scanning electron microscope. The antimicrobial, antioxidant, water vapor sorption isotherm, and mechanical properties of the prepared films were assessed. The (CH/AG) NPs weight ratios (1:1, 1:2, and 2:1) impact on particle size (PS), zeta potential, wettability, morphology, and in vitro cumulative release was investigated. The (CH/AG) NPs (1:2) exhibits the small PS (246.4 nm). (CH/AG) NPs and PE exhibit spherical and oval morphologies. The CH/AG (1:2) exhibits the higher water contact angle (85.7o). At the oil volume fraction (α) = 1.0, nearly 81% of the entrapped oil released from the NPs. Gelatin films enriched with P at α = 1.0 exhibits two‐fold increasing scavenging activity % (35.69 ± 0.56) compared with control film (14.8 ± 0.25). The films have a considerable antibacterial and antifungal activity for all test microorganism. However, control sample did not show antimicrobial activity against Bacillus cereus and Candida albicans.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.51442