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Study of the migration of benzophenone from printed paperboard packages to cakes through different plastic films

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Abstract

Benzophenone is one of the most commonly used photoinitiators, which are mostly used in UV-cured inks for which drying times are much shorter than for conventional solvent or water-based coatings. Benzophenone levels were determined in different packaging materials used for cakes, to evaluate the safety of printed paperboard intended for food contact. For this, a simple extraction method and a rapid specific reverse-phase high performance chromatography method with UV detection were developed. Benzophenone was quantified in different samples by a rapid specific reverse-phase high performance chromatography method after extraction with acetonitrile at 70 °C for 24 h. A novel method for testing benzophenone diffusion towards plastics was also developed and different experiments were conducted in order to measure diffusion coefficients at 70 °C for 2 days and at 40 °C for 10 days. Polypropylene plastics sleeves were found not to be an effective barrier against benzophenone diffusion (3,800 μg/g of benzhophenone was found after 48 h at 70 °C in cakes protected with this film) whereas, the corresponding value in cakes wrapped with a multilayer film of PP/EVOH/PP was reduced to 1,400 μg/g, and the concentration of benzophenone in cakes wrapped with a multilayer film of PET/SiOx/PE was negligible.

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Acknowledgment

The study was financially supported by the Xunta de Galicia (Proj. n PGIDIT05TAL20301PR). Authors are grateful to the “Ramón y Cajal” Programme financed by the Ministry of Education of Spain and to the “Fundação para a Ciência e Tecnologia”, Portugal, for the Postdoctoral fellowship awarded to Ana Sanches Silva. The authors are also grateful to Ms Patricia Blanco Carro, Ms Cristina Casal Romero and Mr Gonzalo Hermelo Vidal for their excellent technical assistance.

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Authors and Affiliations

  1. Joint Research Centre (JRC), IHCP, Physical and Chemical Exposure Unit, T.P. 260, 21020, Ispra (VA), Italy

    Sarah Pastorelli & Catherine Simoneau

  2. Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain

    Ana Sanches-Silva, José Manuel Cruz & Perfecto Paseiro Losada

Authors
  1. Sarah Pastorelli
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  2. Ana Sanches-Silva
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  3. José Manuel Cruz
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  4. Catherine Simoneau
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  5. Perfecto Paseiro Losada
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Correspondence to Sarah Pastorelli.

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Pastorelli, S., Sanches-Silva, A., Cruz, J.M. et al. Study of the migration of benzophenone from printed paperboard packages to cakes through different plastic films. Eur Food Res Technol 227, 1585–1590 (2008). https://doi.org/10.1007/s00217-008-0882-2

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  • DOI: https://doi.org/10.1007/s00217-008-0882-2

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