色谱技术在地沟油鉴别中的应用

Application of chromatographic technology in the identification of swill-cooked dirty oil

地沟油是我国当前面临的食品安全问题之一。地沟油的鉴别指标是用来判断未知油脂是否含有地沟油的标准。常见的地沟油鉴别指标包括内源性组分和外源性杂质。对色谱技术在地沟油中脂肪酸、胆固醇、微量杂质成分等鉴别指标检测中的应用进行了综述,指出应继续筛查地沟油的特异性指标,同时地沟油宜采用多种方法进行检测,综合各种方法的结果进行辨别,以提高鉴别的准确性。

In China,one of the top concerns in food safety is swill-cooked dirty oil.The identification indexs of swill-cooked dirty oil are used to judge whether the unknown oil contains swill-cooked dirty oil or not.Common identification indexes of swill-cooked dirty oil include endogenous components and exogenous impurities.Meanwhile,the application of chromatographic technology in the determination of fatty acids,cholesterol and trace impurities in swill-cooked dirty oil was reviewed.It was pointed that the specific indicators of swill-cooked dirty oil should be screened continuously.At the same time,the swill-cooked dirty oil should be detected by a variety of different methods,and the detection results of various methods should be combined for identification to improve the identification accuracy.