摘要
研究调查了10个植物油品种的491批次食用植物油样本中3-氯-1,2-丙二醇脂肪酸酯（3-MCPD酯）、2-氯-1,3-丙二醇脂肪酸酯（2-MCPD酯）、1,3-二氯-2-丙醇脂肪酸酯（1,3-DCP酯）和2,3-二氯-1-丙醇脂肪酸酯（2,3-DCP酯）4种脂肪酸氯丙醇酯的含量水平,为监管工作提供基础数据。用间接测定法以七氟丁酰基咪唑（HFBI）为衍生剂,GC-MS测定,多同位素内标法定量。调查结果显示：所有样本均未检出1,3-DCP酯和2,3-DCP酯;3-MCPD酯检出率为83.3%,检出结果范围为0.104~8.580 mg/kg;2-MCPD酯检出率为66.0%,检出结果范围为0.106~4.320 mg/kg;3-MCPD酯和2-MCPD酯的同时检出率为65.2%;脂肪酸氯丙醇酯含量水平较高的油脂品种是棕榈油和油茶籽油,含量水平较低的油脂品种是橄榄油和大豆油;不同植物油品种脂肪酸氯丙醇酯含量水平差异较大。
The contents of 3 - monochloropropane - 1, 2 - diol （3 monochloropropane - 1,3 - diol （2 - MCPD ester） , 1,3 - dichloropropane - and 2,3 - dichloropropane - 1 - ol （2,3 - DCP ester） in 491 edible vegetable - MCPD ester）, 2 - 2 - ol （ 1,3 - DCP ester） oil samples of ten kinds of vegetable oil varieties were surveyed so as to provide fundamental datas for supervision work. The oil samples were derivatized by heptafluoro butyrylimidazole （ HFBI ）, then detected by gas chromatography- mass spectrometry （GC - MS ） and quantified by multi - isotopic internal standard method. The survey results showed that 1,3 - DCP ester and 2,3 - DCP ester were not detected in all samples. The detection rates of 3 - MCPD ester and 2 - MCPD ester were 83.3% and 66.0% respective- ly, and their contents were in the range of 0. 104 -8. 580 mg/kg and 0. 106 -4. 320 mg/kg respectively. The simultaneous detection rate of 3 - MCPD ester and 2 - MCPD ester was 65.2%. There were high contents of fatty acid esters of chloropropanols in palm oil and oil - tea camellia seed oil, while olive oil and soybean oil were opposite. There were great differences in the content of fatty acid esters of chloro- propanols among different kinds of edible vegetable oils.
出处
《中国油脂》
CAS
CSCD
北大核心
2015年第11期79-84,共6页
China Oils and Fats
关键词
脂肪酸氯丙醇酯
气相色谱-质谱法
食用植物油
调查分析
fatty acid esters of chloropropanols
gas chromatography - mass spectrometry （ GC -MS）
edible vegetable oil
survey and analysis
