邻苯二甲酸酯增塑剂在可得然包装膜中的迁移研究  

Migration of Phthalate Plasticizers in Curdlan-Based Packaging Film

作　　者：潘磊庆[1] 朱静怡 王茜 韩璐 张充[1] 彭菁[1] 屠康[1] PAN Leiqing;ZHU Jingyi;WANG Qian;HAN Lu;ZHANG Chong;PENG Jing;TU Kang(College of Food Science and Technology,Nanjing Agricultural University,Nanjing 210095,China)

机构地区：[1]南京农业大学食品科技学院,江苏南京210095

出　　处：《包装学报》2021年第2期20-29,共10页Packaging Journal

基　　金：国家重点研发计划基金资助项目(2018YFD0400703)。

摘　　要：以可得然包装膜代表生物基包装材料,选取邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二正丁酯(DBP)以及邻苯二甲酸二(2-乙基己)酯(DEHP)为研究对象,使用气相色谱-质谱联用(GC-MS)法测定增塑剂的迁移量,研究了增塑剂质量分数分别为0.1%、0.5%、1%和3%的可得然薄膜,在低温(4℃)、常温(25℃)与高温(40℃)条件下向正己烷、50%乙醇、4%乙酸和蒸馏水食品模拟物中的迁移规律,并利用Weibull分布函数分别建立3种增塑剂在正己烷中的迁移模型。结果发现,3种增塑剂在4种食品模拟物中的迁移量由大到小依次为:正己烷、50%乙醇、4%乙酸、蒸馏水。随着时间的延长,增塑剂的迁移量先逐渐增加,在第3 d达到迁移平衡,迁移量达到最大值。随着温度的升高,增塑剂的迁移量不断增加,初始添加量越大,其迁移量越大。3种增塑剂在正己烷中更易发生迁移,在实际应用中应避免接触油性食品。建立了DMP、DBP和DEHP基于C_(m)、τ和β三参数的Weibull迁移模型,具有一定的预测性,可用来快速预测邻苯二甲酸酯类增塑剂的迁移量。The curdlan-based packaging film was taken as the representative of bio-based packaging material,dimethyl phthalate(DMP),di-n-butyl phthalate(DBP)and di(2-ethylhexyl phthalate)(DEHP)were selected as the research objects.The migration of plasticizer was determined by gas chromatography-mass spectrometry(GC-MS).The migration into n-hexane,50%ethanol,4%acetic acid and distilled water food simulants from curdlan-based films with plasticizer mass fraction of 0.1%,0.5%,1%and 3%were studied at low temperature(4℃),normal temperature(25℃)and high temperature(40℃).The migration models of three kinds of plasticizers in n-hexane were established by using Weibull distribution function.The results showed that the migration amount of the three plasticizers in the four food simulants was in the descending order:n-hexane,50%ethanol,4%acetic acid,water.With the extension of time,the migration of plasticizer increased gradually at first,the balance was reached on the third day to the maximum.With the increase of temperature,the migration of plasticizer increased,and the larger the initial amount was,the greater the migration.The three plasticizers were more likely to migrate in n-hexane and should avoid contacting with oily food in practical application.The Weibull migration model of DMP,DBP and DEHP based on three parameters of C_(m),τandβwas established with certain predictability and could be used to quickly predict the migration amount of phthalate plasticizers.

关 键 词：增塑剂 可得然包装膜 迁移规律 Weibull迁移模型 

分 类 号：TS206.4[轻工技术与工程—食品科学]