摘要
为了解烟台市售塑料包装食用油中塑化剂的污染水平,并初步预测随贮存时间延长塑化剂迁移含量的变化程度,选择烟台市商场、超市和农贸市场销售的塑料包装食用油样品20个,依据GB/T 21911—2008《食品中邻苯二甲酸酯的测定》,利用GC-MS对DEHP、DBP等16种邻苯二甲酸酯类物质进行检测。常温(20~26℃)下每周检测1次,连续检测样品12周。结果表明:样品中共检测出DIBP、DBP、DEHP和DINP 4种邻苯二甲酸酯类物质,最大值为0.430~4.020 mg/kg,DEHP检出率最高,为70.00%;样品中DEHP、DBP和DIBP的迁移含量随贮存时间延长逐渐增加,其中DIBP迁移含量与贮存时间呈现出对数曲线型变化;DEHP和DBP呈现出类似抛物线型变化;常温下,市售塑料包装食用油中塑化剂随着贮存时间的延长逐渐迁移,需进一步延长贮存时间评估潜在的迁移危害性及其影响因素。
In order to investigate the contamination level of plasticizer in edible oils of plastic packaging in Yantai and preliminarily forecast the variation of migration content of plasticizer with storage time prolonging. 16 types of phthalates esters （DEHP, DBP, etc）in 20 edible oils samples of plastic packaging from market, supermarket, and farmers＇ market in Yantai were detected by GC -MS method according to GB/T 21911--2008 Determination of Phthalates Esters in Foods. And all samples were detected once per week at room temperature continuously for 12 weeks. The results showed that four types of phthalates esters （DIBP, DBP, DEHP and DINP） were detected with the maximum of 0.430-4.020 mg/kg. The detection rate of DEHP was the highest, 70.00%. The migration contents of DEHP, DBP and DIBP in samples increased gradually with storage time prolonging. The relationship between migration content and storage time of DIBP showed the logarithmic curve and the similar parabola curves for DEHP and DBP. The plasticizer could be migrated gradually to the edible oils from the plastic package at room temperature with storage time prolonging. The storage time should be prolonged to estimate the potential risk of migration and its influence factors.
出处
《中国油脂》
CAS
CSCD
北大核心
2017年第4期85-88,98,共5页
China Oils and Fats
基金
烟台市科技局立项项目(2013WS256)
