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Migration of components from cork stoppers to food: Challenges in determining inorganic elements in food simulants

The inorganic elements potentially migrating from cork to a food simulant [a hydroalcoholic solution containing 12 and 20% (v/v) ethanol] have been determined by means of inductively coupled plasma (ICP) with atomic emission and mass spectrometric detection. The experimental instrumental conditions were evaluated in depth, taking into account spectroscopic and nonspectroscopic interference caused by the presence of ethanol and other components in the sample. We report concentrations ranging from 4 μg kg-1 for Cd to 28000 μg kg-1 for Al in the food simulant (concentrations given in kilograms of cork). The values found for Ba, Mn, Fe, Cu, and Zn have been compared with the guideline values stated in EU Regulation 10/2011. In all cases, cork met the general safety criteria applicable to food contact material. Finally, we have proposed water as an alternative to the hydroalcoholic solution to simplify quantification of the tested elements using ICP techniques

The Spanish National Research Program supported this work through Project CGL2010-22168-C03-03

American Chemical Society (ACS)

Director: Ministerio de Ciencia e Innovación (Espanya)
Autor: Corona Prieto, Teresa
Iglesias Juncà, Mònica
Anticó i Daró, Ma. Enriqueta
Resum: The inorganic elements potentially migrating from cork to a food simulant [a hydroalcoholic solution containing 12 and 20% (v/v) ethanol] have been determined by means of inductively coupled plasma (ICP) with atomic emission and mass spectrometric detection. The experimental instrumental conditions were evaluated in depth, taking into account spectroscopic and nonspectroscopic interference caused by the presence of ethanol and other components in the sample. We report concentrations ranging from 4 μg kg-1 for Cd to 28000 μg kg-1 for Al in the food simulant (concentrations given in kilograms of cork). The values found for Ba, Mn, Fe, Cu, and Zn have been compared with the guideline values stated in EU Regulation 10/2011. In all cases, cork met the general safety criteria applicable to food contact material. Finally, we have proposed water as an alternative to the hydroalcoholic solution to simplify quantification of the tested elements using ICP techniques
The Spanish National Research Program supported this work through Project CGL2010-22168-C03-03
Accés al document: http://hdl.handle.net/2072/297244
Llenguatge: eng
Editor: American Chemical Society (ACS)
Drets: Tots els drets reservats
Matèria: Taps de suro
Bottle corks
Títol: Migration of components from cork stoppers to food: Challenges in determining inorganic elements in food simulants
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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