Abstract: In recent years, with the frequent occurrence of food safety issues, the public have been highly concerned about milk adulteration, quality and safety. Aptamer sensor is a new detection method with the characteristics of high specificity and sensitivity and easy operation. The application of aptamer sensors for detecting milk is a future direction. In this paper, the recent applications of aptamer sensors for detecting pathogenic bacteria, antibiotics, biological toxins, heavy metals and other harmful trace substances in milk are reviewed. The current problems regarding the application of this detection method and its future prospects are analyzed, with the aim to provide some references for better utilization of this new technology in milk detection.

Key words: aptamer, sensor, milk, detection