Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/7969
Título: Modelling migration from paper into a food simulant
Autor: Poças, Maria de Fátima
Oliveira, Jorge C.
Pereira, Joel R.
Brandsch, Rainer
Hogg, Timothy
Palavras-chave: Migration
Migration modelling
Paper
Board
Packaging
Mathematical model
Tenax
Phthalate
Recycling
Data: 2011
Editora: Elsevier
Citação: POÇAS, Maria de Fátima... [et al.] - Modelling migration from paper into a food simulant. Food Control. ISSN 0956-7135. Vol. 22, n.º 2 (2011), p. 303-312
Resumo: The migration of components from paper into Tenax was studied to determine the influence of molecular size and chemical character of the migrant and the influence of paper characteristics in the migration process. The Weibull model was applied because Fick’s 2nd law of diffusion gave poor fits in some cases. The migration pattern depended on the migrants molecular size and was independent of temperature in the studied range. The migration rate decreased with the migrant molecular size. The influence of the migrants character (polarity and vapour pressure) on the migration behaviour was also studied: nonpolar migrants with high vapour pressure presented low relative migration values and polar migrants presented high values of relative migration. Results indicated that the apparent partition coefficient between paper and the simulant Tenax increased with the migrant vapour pressure and with both the paper grammage and the recycled pulp content.
Peer review: yes
URI: http://hdl.handle.net/10400.14/7969
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0956713510002495
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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