Due to adequate response even at sub-ppm concentrations and ambient temperature, conducting polymer sensors has gained practical applications in the detection of ammonia gas, which originates from biological changes at the early stage of food decays. This review article focuses on electrochemical gas sensors based on conducting polymers for the application of food safety control. Herein, a broad summary of cutting-edge research works is provided on polymer sensor structures, the sensing characteristics, and sensing polymer films for a wide variety of sensors of gaseous ammonia. In this review, the methods for detecting food spoilage are discussed, followed by considering the sensors to determine toxic vapors and ammonia gas. Furthermore, the fabrication aspect of gas sensors using conducting polymer such as polyaniline (PAni) as the active layer and the performance of modified electrodes are covered. State of the art in respective polymer gas sensors to detect food spoilage and ammonia volatile is also reviewed. Besides, efficient methods to predict the growth of microorganisms with vapor changes and mathematical modeling are addressed. Finally, the perspective of commercial gas sensors is regarded to identify meat spoilage based on the conducting polymers.

由于即使在亚 ppm 浓度和环境温度下也有足够的响应，导电聚合物传感器已在氨气检测中获得实际应用，氨气源于食物腐烂早期的生物变化。这篇综述文章的重点是基于导电聚合物的电化学气体传感器在食品安全控制中的应用。在此，对聚合物传感器结构、传感特性和用于各种气态氨传感器的传感聚合物薄膜的前沿研究工作进行了广泛的总结。在这篇综述中，讨论了检测食物变质的方法，然后考虑传感器来确定有毒蒸汽和氨气。此外，涵盖了使用导电聚合物如聚苯胺 (PAni) 作为活性层的气体传感器的制造方面以及修饰电极的性能。还回顾了各自用于检测食品腐败和氨挥发的聚合物气体传感器的技术水平。此外，还讨论了通过蒸汽变化和数学建模预测微生物生长的有效方法。最后，商业气体传感器的观点被认为是基于导电聚合物识别肉类腐败。