Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

In this work, a colorimetric indicator based on gold nanoparticles (AuNP) and a biodegradable and eco-friendly polymer (sodium alginate, Alg.), was developed for the real-time detection of fish spoilage products. The AuNPs and the colorimetric indicator were characterized using UV-VIS, FTIR spectros...

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Veröffentlicht in:Polymers 2024-03, Vol.16 (6), p.829
Hauptverfasser: Pierre, Lissage, Bruna Bugueño, Julio Elías, Leyton Bongiorno, Patricio Alejandro, Torres Mediano, Alejandra, Rodríguez-Mercado, Francisco Javier
Format: Artikel
Sprache:eng
Schlagworte:
Acids
Bacteria
Cellulose
Colorimetry
Electrons
Fish
Fishery products
Food quality
Gold
Gram-negative bacteria
Identification and classification
Nanoparticles
Nitrogen
NMR
Nuclear magnetic resonance
Physical instruments
Polymers
Polyvinyl alcohol
Properties
Sodium
Sodium alginate
Spoilage
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Beschreibung
Zusammenfassung:In this work, a colorimetric indicator based on gold nanoparticles (AuNP) and a biodegradable and eco-friendly polymer (sodium alginate, Alg.), was developed for the real-time detection of fish spoilage products. The AuNPs and the colorimetric indicator were characterized using UV-VIS, FTIR spectroscopies, TGA, DSC, XRD, TEM, and colorimetry. The UV-VIS spectrum and TEM showed the successful synthesis, the spherical shape, and the size of AuNPs. The results indicated color changes of the indicator in packaged fish on day 9 of storage at a refrigerated temperature (5 °C. These results showed the successful application of the colorimetric indicator in the detection of TVB-N in packaged fish.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym16060829