National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, PR China.
National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2023 Dec 5;302:123089. doi: 10.1016/j.saa.2023.123089. Epub 2023 Jun 28.
Biogenic amines (BAs), which naturally occur as chemicals in seafood, are indicators of food freshness and quality. High concentrations of BAs can cause an undesirable inflammatory response. However, traditional detection methods cannot meet the needs of rapid analysis nowadays. It is essential to explore a simple and valid method to monitor the food quality. Herein, we design and prepare a nanoclay-based turn on fluorescent material with BAs response, which could be used for the real-time and visual detection of raw fish freshness. As the concentration of BAs increase, the sensor of the fluorescence signal is significantly enhanced. The sensor demonstrated wonderful response and sensitivity which showed a detection limit of 0.935 mg/L for typical BAs histamine within a linear range of 2-14 mg/L in an aqueous solution. More importantly, we developed a responsive BAs device by doping the sensor into polyvinyl alcohol (PVA), which is well applied as a rapid-responsive fluorescent marker for visual monitoring the freshness of raw fish.
生物胺（BAs）作为海鲜中天然存在的化学物质，是食品新鲜度和质量的指标。高浓度的 BAs 会引起不良的炎症反应。然而，传统的检测方法已经不能满足当今快速分析的需求。因此，探索一种简单有效的方法来监测食品质量是非常必要的。在这里，我们设计并制备了一种基于纳米粘土的 BAs 响应型荧光材料，可用于实时可视化检测生鱼的新鲜度。随着 BAs 浓度的增加，荧光信号的传感器得到了显著增强。该传感器在水溶液中的线性范围为 2-14 mg/L 时，对典型的 BAs 组胺的检测限低至 0.935 mg/L，表现出极好的响应和灵敏度。更重要的是，我们通过将传感器掺杂到聚乙烯醇（PVA）中，开发了一种响应性 BAs 装置，可作为快速响应荧光标记物，用于视觉监测生鱼的新鲜度。
