Pierre Lissage, Bruna Bugueño Julio Elías, Leyton Bongiorno Patricio Alejandro, Torres Mediano Alejandra, Rodríguez-Mercado Francisco Javier
Packaging Innovation Center (LABEN), Food Science and Technology Department (DECYTAL), Technological Faculty, University of Santiago de Chile (USACH), Ave. Víctor Jara 3769, Santiago 9170124, Chile.
Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago de Chile (USACH), Santiago 9170022, Chile.
Polymers (Basel). 2024 Mar 17;16(6):829. doi: 10.3390/polym16060829.
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.
在这项工作中，开发了一种基于金纳米颗粒（AuNP）和可生物降解且环保的聚合物（海藻酸钠，Alg.）的比色指示剂，用于实时检测鱼类腐败产物。使用紫外可见光谱、傅里叶变换红外光谱、热重分析、差示扫描量热法、X射线衍射、透射电子显微镜和比色法对金纳米颗粒和比色指示剂进行了表征。紫外可见光谱和透射电子显微镜显示了金纳米颗粒的成功合成、球形形状和尺寸。结果表明，在冷藏温度（5℃）下储存第9天时，包装鱼中的指示剂发生了颜色变化。这些结果表明比色指示剂在检测包装鱼中的挥发性盐基氮方面的成功应用。
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