火锅底料包装材料中邻苯二甲酸酯类塑化剂迁移的研究

Phthalate Plasticizer Migration from Packaging Materials to Hotpot Condiment

中文关键词: 火锅底料  邻苯二甲酸酯类塑化剂  迁移  间接污染  气相色谱–质谱联用

英文关键词: hotpot condiment  phthalate plasticizer  migration  indirect contamination  GC-MS

中文摘要:

      目的 火锅底料中的油脂含量较高，复合塑料内包装袋中的塑化剂对火锅底料存在一定污染风险。研究不同内包装材料、灌装温度、存放温度及存放时间对包装材料中邻苯二甲酸酯类塑化剂迁移的影响，为火锅底料内包装袋材料的选择和火锅底料灌装工艺条件的设置提供科学依据。方法 采用气相色谱–质谱联用技术，定性、定量研究各种邻苯二甲酸酯类塑化剂的迁移量。结果 火锅底料常使用PA/PE类型的复合包装，其塑化剂迁移量相较于PA/PP、PET/PA和BOPA/PE包装更高。随着灌装温度和存放温度的升高，以及存放时间的延长，塑化剂的迁移量不断增大，不同灌装温度、存放温度对邻苯二甲酸酯类塑化剂迁移量的影响较大。在火锅底料中，最易发生DBP、DEHP的迁移，未检出其他指标。结论 直接接触火锅底料的包装材料、灌装温度、存放温度、存放时间均会对邻苯二甲酸酯类塑化剂的迁移造成显著影响。为了减少包装材料中邻苯二甲酸酯类塑化剂的迁移量，建议避免使用PA15/PE65作为火锅底料的内包装材料，灌装温度不宜超过70 ℃，在低温下存放，并尽快食用。

英文摘要:

      Hotpot condiment has high oil and fat contents. There is a contamination risk of plasticizer from composite materials in inner package.The work aims to investigate the effect of different packaging materials, filling temperature, storage temperature, and contact time on the migration of phthalate plasticizers, and put forward a scientific reference for the selection of packaging materials and filling process of hotpot condiment. The migration of phthalate plasticizers was qualitatively and quantitatively determined by GC-MS. In PA/PE composite material which was usually used as hotpot packaging, the migration of phthalate plasticizers was more obvious than that in PA/PP, PET/PA and BOPA/PE packaging. The migration of phthalate plasticizers increased with the filling temperature, storage temperature and storage time. Different filling temperature and storage temperature had more significant influence on the migration of phthalate plasticizers. DBP and DEHP were the most likely to migrate from packaging to hotpot condiment, while other indicators were not detected. In conclusion, the packaging materials, filling temperature, storage temperature and storage time could significantly affect the migration of phthalate plasticizers to hotpot condiment in direct contact. In the respect of reducing the migration of phthalate plasticizers, it is suggested to avoid using PA15/PE65 as the inner packaging material of hotpot condiment, keep the maximum filling temperature below 70 ℃, store the hotpot condiment at low temperature and use it as soon as possible.