食用植物油中甘油三酯色谱分析方法研究进展

Advances on Analysis of Triacylglycerols in Plant Oils Based on Chromatography Methods

甘油三酯（TAGs）是植物油的主要成分（占95％～98％）,对植物油的性质有着重要的影响.对其结构组成的分析有助于监控食用植物油质量,保障植物油食用安全.由于甘油骨架上可以结合的脂肪酸很多,导致甘油三酯的种类十分庞大,且一般天然油脂中的甘油三酯不仅物理化学性质非常接近,同时还存在大量的同分异构体和位置异构体.因此甘油三酯的分析是一项非常有挑战性的工作.该文对各类色谱分析技术在食用油中甘油三酯分析方面的应用进行了综述,评述了各方法的优缺点,并对指纹图谱技术和化学计量学方法在植物油鉴定中的应用进行了介绍.

Triacylglycerols （TAGs） profiling of plant oils is important for the effective control of edible oil quality and the safety assurance of plant oils.The analysis of TAG compositions in plant oils is a challenging task because of the complicated compositions of TAGs and their similar physico-chemical properties in plant oils.In this article,all kinds of chromatography technologies for the analysis of TAGs were reviewed.The advantages and disadvantages of these analytical methods and the relevant applications in TAGs analysis were also described.In addition,the applications of fingerprint technique and chemometrics methods in the identification of plant oils were also introduced.