Pierre, L.; Bruna Bugueño, J.E.; Leyton Bongiorno, P.A.; Torres Mediano, A.; Rodríguez-Mercado, F.J. Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage. Polymers2024, 16, 829.
Pierre, L.; Bruna Bugueño, J.E.; Leyton Bongiorno, P.A.; Torres Mediano, A.; Rodríguez-Mercado, F.J. Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage. Polymers 2024, 16, 829.
Pierre, L.; Bruna Bugueño, J.E.; Leyton Bongiorno, P.A.; Torres Mediano, A.; Rodríguez-Mercado, F.J. Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage. Polymers2024, 16, 829.
Pierre, L.; Bruna Bugueño, J.E.; Leyton Bongiorno, P.A.; Torres Mediano, A.; Rodríguez-Mercado, F.J. Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage. Polymers 2024, 16, 829.
Abstract
In this work, a colorimetric indicator based on gold nanoparticles (AuNP) and a biodegradable and eco-friendly polymer (sodium alginate, Alg.), has been developed, for the real-time detection of fish spoilage products. AuNP and colorimetric indicator were characterized by: 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. Results indicated color changes of the indicator in packaged fish on day 9 of storage at refrigerated temperature (5ºC). These results showed the successful application of colorimetric indicator in the detection of TVB-N in packaged fish.
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