摘要：Volatile organic compounds are a major topic in food science and technology. These compounds form the flavor of foods. Their fast, non-invasive detection helps to control product quality and to monitor fundamental and industrial processes. Proton Transfer Reaction – Mass Spectrometry (PTR-MS) technology enables real-time measurement of volatile organic compounds. The method is based on reactions of H3O+ ions with most of the common volatile organic compounds (VOCs) but do not react with any of the components present in clean air. PTR-MS is applied in medical, environmental and food researches. Examples of food research are discussed on the basis of VOC emissions from fruit, vegetable, olive oil, butter, cheese, wine, coffee and meat. After introducing the principles and application areas of PTR-MS, we reviewed its applications in food science and technology.
关键词：proton transfer reaction-mass spectrometer; PTR-MS; food; volatile organic compounds
