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| A Review of the Working Principle of Electronic Nose Gas Sensor and Its Application in Meat Adulteration Detection |
| XIE Xinru, ZHANG Dequan, LI Shaobo, HOU Chengli, ZHENG Xiaochun, CHEN Li |
| 1.College of Food and Wine, Ningxia University, Yinchuan 750021, China; 2.Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China |
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Abstract As a new bionic olfactory detection technology, the electronic nose has drawn the interest of researchers worldwide for its advantages such as short detection time, simple sample pretreatment, and reliable detection results. At present, there are many new electronic nose sensors based on different detection principles and mechanisms that are available in the market, and the differences in their types and arrays are closely related to the expansion of the application of electronic noses. This paper illuminates the working principles of gas-sensitive sensors used in electronic noses such as metal oxide-type, conductive polymer-type, mass-sensitive, field effect tube-type, and optical fiber-type, analyzes the main factors affecting the results of electronic nose, and summarizes the recent progress in the application of electronic nose technology in the detection of adulteration of fresh meat and meat products, aiming to provide a foundation for the industrial popularization of electronic nose technology and for innovations in meat adulteration detection technology.
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2023, Vol. 37 
