A new transparent colorimetric sensor array is presented for naked eye monitoring of the chicken meat freshness. This sensor array consists of four sensors fabricated by using pH indicators, immobilized on triacetyl cellulose (TAC) membrane. The sensor array represented obvious color change when it was exposed to the volatile organic compounds emitted from the chicken meat after 20 h keeping at room temperature or after four days of storage in the refrigerator. Therefore, it could easily identify spoiled meat from the fresh one assisted by chemometrics data analysis. Also, the color change of sensors due to the spoilage was sharp enough that could be read even by untrained people, providing naked eye monitoring the chicken meat freshness. The TAC polymer represented high physical stability for industrial scale-up. In addition, the immobilized indicators represented good stability against color change in humid condition. This offered the potential for continuous monitoring of the meat spoilage as smart labeling in the markets.

提出了一种新型透明比色传感器阵列，用于肉眼监测鸡肉新鲜度。该传感器阵列由四个使用 pH 指示剂制成的传感器组成，固定在三乙酰纤维素 (TAC) 膜上。当传感器阵列在室温下保存20小时或在冰箱中保存四天后暴露于鸡肉散发的挥发性有机化合物时，表现出明显的颜色变化。因此，借助化学计量学数据分析，可以轻松识别变质肉和新鲜肉。此外，由于腐败而导致的传感器颜色变化足够清晰，即使未经训练的人也可以读取，从而提供肉眼监测鸡肉的新鲜度。TAC 聚合物具有较高的物理稳定性，适合工业规模化生产。此外，固定指示剂在潮湿条件下对颜色变化表现出良好的稳定性。这为市场上的智能标签提供了持续监测肉类腐败的潜力。