油脂性食品中脂肪酸氯丙醇酯检测方法的研究进展

摘要

脂肪酸氯丙醇酯污染是近年来国际上新出现的热点食品安全问题之一,尤其是3-氯-1,2-丙二醇脂肪酸酯(3-MCPD酯)污染问题更为突出.3-MCPD酯在食用油、婴幼儿奶粉等多种食品中的含量较高,以3-MCPD的最大耐受剂量(TDI)评估时所引起的健康风险较高.国外已对3-MCPD酯等氯丙醇酯的检测方法、污染调查和形成机制等开展了不少的研究,国内开展的研究较少.本文主要对油脂食品中3-MCPD酯的检测方法(包括前处理过程,如3-MCPD酯的提取、水解和衍生)、3-MCPD酯总量以及3-MCPD单酯和双酯的检测方法进行了综述.%Fatty acid esters of chloropropanediols are a kinds of newly emerged food contaminants, especially 3-monochloropropane-1, 2-diol (3-MCPD) esters that have been detected in many foodstuffs such as infant formula and edible oils at relatively high levels. Based on the Tolerable Dose Intake (TDI) of 3-MCPD, the intake of 3-MCPD from 3-MCPD esters may cause the health risk to human beings. The researches for the analysis of 3-MCPD esters have been carried out in some institutes abroad, but there were only a few in China. This paper reviews the methods for the determination of 3-MCPD esters in fat-rich foods, including the extraction, hydrolysis, the derivatization of 3-MCPD esters, the total amount of 3-MCPD esters and the amounts of monoesters and diesters of 3-MCPD.