Migration of Contaminants from Packaging Materials into Dairy Products

摘要

Typical dairy products (DP) include milk, cheese, butter and yoghurt. Since they are consumedwidely, people are concerned about their safety. However some contaminants in the packaging materials (PM)might migrate into them. Many researches have been made on the migration into simulants of DP. But littlework has been done on DP themselves due to their complex matrices. Herein the migration of contaminantsfrom PM into DP was reviewed from year 2006 to 2010. The contaminants from plastics include styrenemonomer, bisphenol A (BPA), plasticizers, melamine (MEL), photoinitiators, diphenylbutadiene (DPBD),butylated hydroxytoluene (BHT) and metal elements. The contaminants from paper and cardboard includeprimary and recycled paper and board. In some cases just the amounts of the migrants in DP were determined.While in others mathematical models based on Fick's second law were built to predict the migration values,which fitted well with the experimental values. Diffusion coefficients at certain temperatures were predictedas well. Detection methods mainly included chromatography, chromatography/mass spectrometry andchromatography tandem mass spectrometry. Commonly adopted sample pretreatment methods were solventextraction followed by solid-phase extraction (SPE).