Arisseto A P, Marcolino P F C, Vicente E
a Food Science and Quality Center (CCQA) , Institute of Food Technology (ITAL) , Campinas , Brazil.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2014;31(8):1385-92. doi: 10.1080/19440049.2014.926400. Epub 2014 Jun 12.
An in-house validated GC-MS method preceded by acid-catalysed methanolysis was applied to 97 samples of vegetable oils and fats marketed in Brazil. The levels of the compounds ranged from not detected (limit of detection = 0.05 mg kg(-1)) to 5.09 mg kg(-1), and the highest concentrations were observed in samples containing olive pomace oil and in products used for industrial applications, such as palm oil and its fractions (olein and stearin). The content of diesters and monoesters was also investigated by employing solid-phase extraction on silica cartridges, indicating that the majority of the compounds were present as diesters. This study provides the first occurrence data on these contaminants in Brazil and the results are comparable with those reported in other countries.
一种经过内部验证的气相色谱-质谱联用（GC-MS）方法，该方法之前进行了酸催化甲醇解，应用于巴西市场上销售的97份植物油和脂肪样品。这些化合物的含量范围从未检出（检测限=0.05 mg kg⁻¹）到5.09 mg kg⁻¹，在含有橄榄果渣油的样品以及用于工业应用的产品（如棕榈油及其馏分（油酸甘油酯和硬脂酸甘油酯））中观察到最高浓度。还通过在硅胶柱上进行固相萃取来研究二酯和单酯的含量，表明大多数化合物以二酯形式存在。本研究提供了巴西这些污染物的首次出现数据，结果与其他国家报告的数据具有可比性。
