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Food freshness monitoring using poly(vinyl alcohol) and anthocyanins doped zeolitic imidazolate framework-8 multilayer films with bacterial nanocellulose beneath as support
Date
2023-11-01
Author
Oktay, Cansu
Kahyaoğlu, Leyla Nesrin
Moradi, Mehran
Metadata
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Multilayer intelligent freshness labels based on bacterial nanocellulose (BNC), poly(vinyl alcohol) (PVA), and anthocyanins doped zeolitic imidazolate framework-8 (A-ZIF-8) nanocrystals were developed in this study. First, optical, structural, thermal, and surface characterizations of A-ZIF-8 nanocrystals were performed, and the successful incorporation of anthocyanins into ZIF-8 nanocrystals was demonstrated. Next, A-ZIF-8 was added into PVA, and multilayer films were fabricated by spin-coating PVA/A-ZIF-8 layers onto BNC. The effect of the number of deposition cycles on the barrier, mechanical, thermal, morphological, and colorimetric properties of multilayer labels was investigated. The ammonia sensing, mechanical, and barrier properties of the films were shown to be tuned by the number of the PVA/A-ZIF-8 layers on the BNC. Among the developed films, BNC-2PVA/A-ZIF-8 films with the best colorimetric sensitivity toward volatile ammonia were used to monitor the freshness of skinless chicken breasts. The changes in the ΔE and a* values of BNC-2PVA/A-ZIF-8 film demonstrated a good correlation with the microbial and TVB-N levels in samples over 10 days of storage at 4 °C.
Subject Keywords
Bacterial cellulose
,
Food spoilage
,
Intelligent packaging
,
Layer-by-layer film
,
Zeolitic imidazolate framework-8
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85165171769&origin=inward
https://hdl.handle.net/11511/104977
Journal
Carbohydrate Polymers
DOI
https://doi.org/10.1016/j.carbpol.2023.121184
Collections
Department of Food Engineering, Article
Citation Formats
IEEE
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MLA
BibTeX
C. Oktay, L. N. Kahyaoğlu, and M. Moradi, “Food freshness monitoring using poly(vinyl alcohol) and anthocyanins doped zeolitic imidazolate framework-8 multilayer films with bacterial nanocellulose beneath as support,”
Carbohydrate Polymers
, vol. 319, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85165171769&origin=inward.