Colorimetric core/shell ZIF-8/PEO/PDA nanofibers for detection of fish spoilage

Date

2025-02-28

Author

Najafi, Zahra
Han, Sangil
Şümnü, Servet Gülüm
Kahyaoğlu, Leyla Nesrin

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Here, colorimetric nanofibers (NFs) based on polydiacetylene (PDA), zeolitic imidazolate framework-8 (ZIF-8), and poly(ethylene) oxide (PEO) were developed. First, the successful synthesis of ZIF-8 was illustrated with structural and morphological analysis. Next, shell/core PDA/PEO/ZIF-8 NFs, namely PPZ0, PPZ5, PPZ15, and PPZ25, were fabricated by coaxial electrospinning at various ZIF-8 concentrations in the core. PPZ5 NFs exhibited a 63 % increase in tensile strength while PPZ25 NFs showed the highest thermal resistance. PPZ15 NFs with the best physicochemical and colorimetric properties were selected to evaluate food spoilage. The change in color difference values of PPZ15 NFs was correlated well with total viable count (TVC) and total volatile basic nitrogenous (TVB-N) in fish samples during chilled storage, reaching TVC to 6.69 log CFU/g, and TVB-N to 33.13 mg N/100 g on day 6. Ultimately, the PPZ15 NFs were successfully utilized to provide a real-time, quantitative assessment of fish freshness.

Subject Keywords

Coaxial electrospinning, Fish spoilage, Polydiacetylene, Smart packaging, Zeolitic imidazolate framework-8

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85210026764&origin=inward
https://hdl.handle.net/11511/113318

Collections

Department of Food Engineering, Article