植物油掺伪检验技术研究进展

食用植物油是重要生活必需品,但食用油脂掺假问题比较突出。将廉价植物油掺入到高价植物油中,可以此获得高额利润,但这些做法极大损害了广大消费者的利益。本文主要综述了理化鉴别、仪器分析等当前植物油掺伪检验的主要方法及基本原理,重点介绍了气相色谱、液相色谱和质谱联用等色谱技术,红外光谱、近红外光谱、紫外和拉曼光谱等光谱技术以及核磁共振和电子鼻等现代分析技术在植物油防伪鉴别上的应用,总结了国内外植物油掺伪检测技术的研究进展,并对各种方法的优缺点进行了比较,对在植物油掺伪鉴别最新研究进展和应用中存在的问题进行了分析和展望。

Research progress on determination of adulterated vegetable oil

Edible vegetable oil is an important necessity of life, but the adulteration of edible oil is more prominent. The incorporation of cheap vegetable oils into high-priced vegetable oils can bring high profits, but these practices greatly harm the interests of consumers. This paper mainly reviewed the main analytic technologies and basic principles for adulteration detection including physical and chemical identification and instrument analysis, specifically introduced the applications of chromatographic techniques (gas chromatography, liquid chromatography and mass spectrometry), spectral technique (infrared/near infrared spectrum, UV spectrum and Raman spectrum), nuclear magnetic resonance method as well as electronic nose technology. It also summarized the research progresses of domestic and foreign scholars in the research of vegetable oil adulteration detection, compared the advantages and disadvantages of various methods, and analyzed and prospected the problems in the identification of vegetable oil adulteration in latest research and application.