两种常见的紫外光固化油墨成分向食品模拟物中的迁移研究。
Migration Studies of Two Common Components of UV-curing Inks into Food Simulants.
机构信息
Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
National Food Center, Spanish Agency of Food Safety and Nutrition, E-28220 Majadahonda, Spain.
出版信息
Molecules. 2019 Oct 7;24(19):3607. doi: 10.3390/molecules24193607.
The Rapid Alert System for Food and Feed (RASFF) has reported many cases of different UV curing inks components in foodstuffs during the last few years. These contaminants reach foodstuffs mainly by set-off, their principal migration mechanism from the package. Under this premise, this work has tried to characterize the process of migration of two common UV ink components: a photoinitiator (4-Methylbenzophenone) and a coinitiator (Ethyl-4-(dimethylamino) benzoate), from the most common plastic material used in food packaging low-density polyethylene (LDPE) into six different food simulants. The migration kinetics tests were performed at four different common storage temperatures, obtaining the key migration parameters for both molecules: the coefficients of diffusion and partition. The migration process was highly dependent on the storage conditions, the photoinitiator properties and the pH of the foodstuff.
在过去几年中，食品和饲料快速预警系统（RASFF）报告了许多食品中不同的紫外线固化油墨成分的案例。这些污染物主要通过墨辊转移进入食品，这是它们从包装中迁移的主要机制。基于此前提，本工作试图对两种常见的 UV 油墨成分（光引发剂 4-甲基苯甲酮和助引发剂 4-（二甲氨基）苯甲酸乙酯）从最常见的食品包装用塑料低密度聚乙烯（LDPE）迁移到六种不同的食品模拟物的过程进行了特征描述。迁移动力学测试在四种不同的常见储存温度下进行，获得了这两种分子的关键迁移参数：扩散系数和分配系数。迁移过程高度依赖于储存条件、光引发剂的性质和食品的 pH 值。
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