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Mathematical Problems in Engineering
Volume 2013, Article ID 150687, 3 pages
Research Article

Study the Migration Process of Chemical Substances through the Packaging/Food Interface during Microwave Treatment

1School of Chemistry and Materials Engineering, Jiangnan University, Wuxi 214122, China
2The Key Laboratory of Food Colloids and Biotechnology, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi 214122, China
3Packaging Engineering Institute, Jinan University, Zhuhai 519070, China
4Jiangyin Propack Packing Co., Ltd., Jiangyin 214433, China

Received 5 May 2013; Accepted 17 May 2013

Academic Editor: Jun Wang

Copyright © 2013 Fang Duan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The diffusion of chemical substances from packaging into food endangers people’s health. The migration amount of the chemical substances increases with the time and temperature, but the diffusion process for different kinds of packaging materials differs much. Most recently, the research community showed a renewed interest on the diffusion process of chemical substances through packaging/food interface during microwave treatment. In this study, the diffusion coefficient model is suggested and then the migration process is studied based on Fick’s diffusion law. The results are finally compared with the experimental data, showing good agreement.