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Study of the diffusion coefficients of diphenylbutadiene and triclosan into and within meat

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Abstract

The migration of two chemicals, diphenylbutadiene and triclosan, was the target of this paper. Pork meat with different fat contents was prepared to study the influence of this parameter in the migration levels and to study the rate of diffusion of these migrants into the whole plastic/foodstuffs system and within the foodstuff. The whole system plastic/foodstuff diffusion coefficient (effective D) was calculated according to an equation based on the Fick’s Second Law, and D within the foodstuff (D F) was calculated according to the Moisan equation. At 5 °C, D F was 1.6 × 10−7 and 1.7 × 10−7 cm2/s for DPBD and triclosan, respectively. At 25 °C, D F was 3.7 × 10−7 and 3.9 × 10−7 cm2/s for DPBD and triclosan, respectively. As expected, D within the pork meat is faster than the whole system D, which means that the interface plastic/foodstuff may be the limiting step for the mass transport of chemicals from the packaging to the foodstuff.

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Acknowledgments

The study was financially supported by the Xunta de Galicia (Proj. nº INCITE08PXIB203096PR). Authors are grateful to the “Ramón y Cajal” Program financed by the Ministry of Education of Spain and to the “Fundação para a Ciência e Tecnologia”, Portugal, for the Postdoctoral contract of Ana Sanches Silva in the frame of the Program “Science 2007”. The authors are grateful to Ms. Patricia Blanco Carro and Mr. Gonzalo Hermelo Vidal for their excellent technical assistance.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Pharmacy, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain

    A. Sanches Silva & P. Paseiro Losada

  2. Department of Food and Nutrition, National Institute of Health Dr. Ricardo Jorge, Av. Padre Cruz, s/n, 1649-016, Lisbon, Portugal

    A. Sanches Silva

  3. Department of Chemical Engineering, E.T.S.E.I., University of Vigo, 36200, Vigo (Pontevedra), Spain

    J. M. Cruz Freire

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  1. A. Sanches Silva
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  2. J. M. Cruz Freire
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  3. P. Paseiro Losada
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Correspondence to P. Paseiro Losada.

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Sanches Silva, A., Cruz Freire, J.M. & Paseiro Losada, P. Study of the diffusion coefficients of diphenylbutadiene and triclosan into and within meat. Eur Food Res Technol 230, 957–964 (2010). https://doi.org/10.1007/s00217-010-1230-x

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  • DOI: https://doi.org/10.1007/s00217-010-1230-x

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