Migration measurements from plastic packaging: a simulation study on influence of initial concentration profile

• Autorzy: Manzoli, J. E. , Rosa, F. M. L. , Silva Felix, J. , Monteiro, M.
• Języki publikacji: EN

Abstrakty

EN

Migration of components from plastic packaging into foodstuffs or into medicines is a very important issue, concerning public health. Using experimental techniques, like gas chromatography-mass spectrometry, these essays measure total migration and specific migration of components from plastic packaging. This work presents an explanation and applications of a numerical technique tool for this measurement, allowing the comprehension of the diffusion process and the estimate of component migration in difficult or impractical measurements. As an application example, the non-uniform influence of initial concentration profile on the migration is presented, demonstrating the necessity of this profile determination for high quality considerations on involved metrology.

Słowa kluczowe

EN

migration; diffusion; packaging; simulation; chemical contamination

• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2007
• Tom: Vol. 14, nr 1
• Strony: 117-124
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Manzoli, J. E.

autor

Rosa, F. M. L.

autor

Silva Felix, J.

autor

Monteiro, M.

• Centro de Tecnologia das Radiaçoes, Instituto de Pesquisas Energéticas e Nucleares, Sao Paulo, Brazil,

Bibliografia

• 1. Katan L. L.: Migration from food contact material. Blackie Academic & Professional, London, 1996.
• 2. Hamdani M., Feigenbaum A., Vergnaud J. M.: Prediction of Worst Case Migration from Packaging to Food Using Mathematical Models, Food Additives and Contaminants, vol. 14, no. 5, pp. 499-506, 1997.
• 3. Franz R., Huber M., Piringer O.: Presentation and Experimental Verification of a Physico-mathematical Model Describing the Migration Across Functional Barrier Layers into Foodstuffs, Food Additives and Contaminants, vol. 14, no. 6-7, pp. 627-640, 1997.
• 4. Laoubi S., Vergnaud J. M.: Modelling Transport between a Monolayer and a Bi-layer Polymeric Package and Food, Food Additives and Contaminants, vol. 14, no. 6-7, pp. 641-647, 1997.
• 5. Rosa F. M. L., Monteiro M., Manzoli J. E.: Modelo Matemático e Simulação da Migração/Difusão de Componentes de Embalagens Plásticas para Alimentos ou Medicamentos Submetidas ou não à Radiação, 17º CBECIMAT - Congresso Brasileiro de Ciência e Engenharia de Materiais, CDROM, Foz do Iguaçu, PR, Brazil, 2006.
• 6. Von Rosenberg D. U.: Methods for the numerical solution of partial differential equations - Modern Analytic and Computational Methods in Science and Mathematics, Elsevier, New York, 1975.
• 7. Manzoli J. E., Monteiro M.: Mathematical Model for the Migration of Thinuvin P from PET Bottles into n-Heptane, Macro2006-World Polymer Congress, Rio de Janeiro 16-21 July, 2006.