基于比色传感的肴肉新鲜度监测三维码技术OA

As a typical low-temperature meat product,Yao-meat has high requirements on the temperature and oxygen content of the storage environment and is prone to deterioration.It is particularly important to develop technology for the real-time monitoring of Yao-meat freshness and storage environment.The method was proposed to monitor the freshness and storage conditions of Yao-meat in real time based on the indication of three-dimensional code of colorimetric sensing.The freshness,oxygen,temperature indicating inks and screen printing were used to prepare the three-dimensional codes.The reliance of the three-dimensional codes on ambient light and camera parameters during the scanning process was reduced by developing smartphone application that included black and white correction programme to read the three-dimensional codes and the colorimetric sensor data.The results show that the recognition accuracy of the three-dimensional code is more than 90％under different storage conditions.The prepared colorimetric three-dimensional code achieves the simultaneous monitoring of changes in storage conditions and freshness during the storage process of Yao-meat,which provides new idea for the freshness monitoring of low-temperature meat products.