Aniołowska Magda, Kita Agnieszka
Department of Food Storage and Technology, Faculty of Food Science, Wrocław University of Environmental and Life Sciences, Chelmonskiego 37 Str., PL-51-630, Wrocław, Poland.
J Sci Food Agric. 2016 Sep;96(12):4056-61. doi: 10.1002/jsfa.7603. Epub 2016 Feb 5.
Glycidyl fatty acid esters (GEs) are a newly identified class of food process contaminants. The main source of these compounds is refined oils. Because of the potential release of free glycidol, it is necessary to enable a more accurate exposure assessment. In this study a method based on liquid chromatography-single-quadrupole mass spectrometry was used for the analysis of GEs in refined vegetable oils from retail outlets in Poland.
The amount of GEs detected in 20 edible oils ranged from 0.00 to 44.33 mg kg(-1) . Refined palm oils exhibited a several times higher contamination ratio in comparison with other oils (average 31.24 mg kg(-1) ). The average content of esters in sunflower oils (2.46 mg kg(-1) ) was higher than in rapeseed oils (1.04 mg kg(-1) ). C18:2-GE was found to be the prevailing GE in sunflower oil, with the highest concentration in all studied samples, while C18:1-GE was the prevailing GE in rapeseed and palm oils. No trace of C18:3-GE was found in the analysed oils.
The concentrations of major GEs were correlated with the fatty acid composition of the oils. The GE content varied with the type of oil and the producer. The tested oils had a higher or similar GE content compared with those analysed by other researchers. © 2015 Society of Chemical Industry.
缩水甘油脂肪酸酯（GEs）是一类新发现的食品加工污染物。这些化合物的主要来源是精炼油。由于可能释放出游离缩水甘油，因此有必要进行更准确的暴露评估。在本研究中，采用基于液相色谱 - 单四极杆质谱法对波兰零售网点的精炼植物油中的GEs进行分析。
在20种食用油中检测到的GEs含量范围为0.00至44.33 mg kg⁻¹。与其他油相比，精炼棕榈油的污染率高出数倍（平均31.24 mg kg⁻¹）。葵花籽油中酯的平均含量（2.46 mg kg⁻¹）高于菜籽油（1.04 mg kg⁻¹）。发现C18:2 - GE是葵花籽油中主要的GE，在所有研究样品中浓度最高，而C18:1 - GE是菜籽油和棕榈油中的主要GE。在所分析的油中未发现C18:3 - GE的痕迹。
主要GEs的浓度与油的脂肪酸组成相关。GE含量因油的类型和生产商而异。与其他研究人员分析的油相比，测试油的GE含量更高或相似。© 2015化学工业协会。
