气相色谱法检测食品中脂肪酸的研究进展

Research progress on detection of fatty acids in food by gas chromatography

脂肪酸是食品的重要组成成分,也是机体能量的主要来源之一。了解脂肪酸的含量,对于合理规划饮食有很大帮助。近年来,食品安全事件频频发生,食品中脂肪酸的检测已成为食品检测领域重点工作。在食品中脂肪酸众多的检测手段中,气相色谱法依然是最常用的检测方法。本文汇总了目前食品中脂肪酸的国家标准检测方法,针对鱼油、植物油和婴幼儿食品等不同食品基质有不同的标准;综述了近年来国内外对食品中脂肪酸的气相色谱检测方法的研究进展,包括气相色谱法在不同食品中的检测应用、气相色谱前处理方法的优化以及串联质谱检测方法的拓展。对前处理条件的优化,从脂肪提取、甲酯化处理和色谱条件的改变等各方面分别进行概述。最后也对其发展趋势作出展望。

Fatty acids are the important components of food and one of main sources of the body＇s energy. It is of great help to create a reasonable diet plan by acquiring the content of fatty acids. As food safety incidents have frequently occurred in recent years, determination of fatty acids in food has become the focus of the food safety work. Gas chromatography is still the most common detection method for fatty acids in food. The national standard detection methods of fatty acids in food and recent progress on gas chromatography in fatty acids at home and abroad were summarized in this paper, including the application of gas chromatography on different kinds of food, optimization of the pre-treatment methods, as well as the tandem mass spectrometry methods. Finally, the future trends of detection methods for fatty acids in food were also prospected.