离子迁移谱技术在食品风味分析中的应用研究进展

离子迁移谱(ion mobility spectrometry,IMS)通过对样品分子电离、根据离子迁移率的差异进行分离检测,具有响应快、灵敏度高、易操作和成本低的优点。本文简要介绍了离子迁移谱技术的工作原理、分类和联用技术(如GC-IMS、IMS-MS),总结了其在国内外食品风味分析中的应用进展,其中包括肉类、水产品、水果等新鲜程度评估、葡萄酒中"异味"化合物定量、啤酒发酵在线监控、橄榄油和奶酪的产品分级、食用油掺假检测、伊比利亚猪肉及火腿鉴伪以及其他食品生产过程的质量控制等方面的应用。指出离子迁移谱技术在食品风味分析领域具有良好的应用前景,以期为今后食品风味分析提供参考。

Research Progress on the Application of Ion Mobility Spectrometry(IMS)in Food Flavor Analysis

Ion mobility spectrometry(IMS)is an analytical technique that separates sample ions based on their ion mobility velocity,which has various advantages of rapid response,highly sensitive,easy and simple operation with low price. The basic principles of IMS and its variants are introduced,the coupled techniques(such as GC-IMS,IMS-MS)are generalized briefly,and the up-to-date applications of IMS in food flavor analysis over the past few years are summarized. Among these,the evaluation of the degree of freshness of meat,aquatic food,fruits and so on,the quantification of the odorants which product the "off-flavor" in wine,the on-line monitoring of the beer fermentation process,the classification of olive oil and cheese grades,the inspection of edible oil adulteration,the identification of Iberian pork and ham and the production process control of other food. Morever,it points out that IMS has a good application prospect in the field of food flavor analysis to provide guidance for the future analysis of food flavor.