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目的对市售食品和食品包装袋中5种邻苯二甲酸酯类(PAEs)的污染情况进行调查,对调查结果进行分析。方法采用统计学方法随机抽取市场上485份食品样品和102份食品包装材料,将食物按种类和包装方式等分类后进行测定,采用高效液相色谱一串联质谱联用法测定,对调查结果进行统计学处理和分析。结果485份不同种类食品样品中普遍检出PAEs,检出率达53.2%,含量范围在0.01～13960mg/kg之间,5种PAEs在食品中的含量DEHP>DBP>DEP>DOP>DMP;塑料袋包装食品中PAEs含量明显高于非塑料包装食品;102份塑料包装材料中PAEs检出率为31.4%,含量以DE-HP和DBP为主。Spearman相关分析显示,食品中DBP、DOP和DEHP含量与包装材料的含量呈正相关,其中DBP和DEHP相关系数在0.989,DMP和DEP相关关系不显著(P>0.05)。油脂含量高的食品中PAEs含量也高。结论食品中PAEs的污染主要来源于食品包装材料。高温和高油脂含量是加剧塑料包装材料中PAEs溶出到食品中的一个重要因素。调查结果显示,食品中邻苯二甲酸酯类环境激素的污染比较严重,应引起有关部门的重视。
Objective To investigate the pollution of five kinds of phthalates (PAEs) in commercial food and food packaging bags and analyze the investigation results. Methods Statistical methods were used to randomly select 485 food samples and 102 food packaging materials on the market. The foods were classified according to the types and packaging methods, then determined by high performance liquid chromatography-tandem mass spectrometry, and the results were statistically analyzed Processing and analysis. Results A total of 485 PAEs were detected in 485 different kinds of food samples, with a detection rate of 53.2% and a content range of 0.01-1399 mg / kg. The contents of five PAEs in food were DEHP> DBP> DEP> DOP> DMP. The content of PAEs in bagged food was significantly higher than non-plastic packaged food. The detection rate of PAEs in 102 plastic packaging materials was 31.4%, and the content of PAEs was mainly DE-HP and DBP. Spearman correlation analysis showed that the contents of DBP, DOP and DEHP in food were positively correlated with the contents of packaging materials. The correlation coefficient between DBP and DEHP was 0.989, and the correlation between DMP and DEP was not significant (P> 0.05). PAEs in foods with high fat content are also high. Conclusion PAEs in food mainly come from food packaging materials. High temperature and high fat content is an important factor in aggravating the dissolution of PAEs in foodstuffs in plastic packaging materials. Survey results show that food phthalates environment hormone pollution is more serious, should cause the attention of relevant departments.