Migration from acrylonitrile butadiene styrene (ABS) polymer: Swelling effect of food simulants compared to real foods
| Autor: | Frank Welle, Annika Ebert, Anita Gruner, Valeria Guazzotti |
|---|---|
| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Food contact materials Acrylonitrile butadiene styrene Diffusion 010401 analytical chemistry 02 engineering and technology Aqueous ethanol Polymer 021001 nanoscience & nanotechnology Pulp and paper industry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Food Animals chemistry medicine Swelling medicine.symptom 0210 nano-technology Agronomy and Crop Science Food Science Biotechnology Olive oil |
| Popis: | Materials and articles made of acrylonitrile–butadiene–styrene (ABS) intended for contact with food must comply with the requirements of the European Plastic Regulation (EU) 10/2011, which lays down the food simulants and the time/temperature conditions to be applied for migration testing. Previous studies indicated that high concentrations of ethanol at temperatures above ambient may lead to swelling of ABS polymers resulting in increased migration. In this study migration kinetic data for a set of model substances at different temperatures were obtained using both food simulants stipulated in EU regulations and real food (milk, cream and olive oil). At the same time, the extent of polymer swelling was gravimetrically characterized after contact with simulants and different foods tested at several conditions to cover the majority of foreseeable applications of ABS. The obtained results confirmed that the use of high concentrations of ethanol–water, especially at high temperatures, causes the swelling of ABS polymers and results in significantly higher migration values compared to the tested foods as well as Tenax®. None of the real foods studied cause significant swelling of ABS. The widely used simulant 95% (v/v) aqueous ethanol proves not be suitable for compliance testing of ABS under the recommended conditions of Regulation (EU) 10/2011. Swelling of the polymer results in artificially higher diffusion coefficients or lower activation energies of diffusion. Migration prediction using polymer-specific diffusion parameters should therefore be considered to avoid over-conservative risk assessment for food contact materials and articles made of ABS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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