Migration of a UV stabilizer from polyethylene terephthalate (PET) into food simulants |
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| Authors: | T H Begley J E Biles C Cunningham O Piringer |
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| Affiliation: |
a Food and Drug Administration, Center for Food Safety and Applied Nutrition, College Park, MD 20740, USA
b Fabes GmbH, Schragenhofstr, Munich, Germany |
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| Abstract: | The migration characteristics of the UV stabilizer Tinuvin 234 (2-(2H-benzotriazol-2-yl)-4,6-bis (1-methyl-1-phenylethyl)phenol) into food simulants has been measured from polyethylene terephthalate (PET) using HPLC with UV detection. Ethanol/water, isooctane and a fractionated coconut oil simulant (Miglyol®) were used as food simulating solvents. The migration characteristics were measured at temperatures in the range of 40-70°C. Diffusion coefficients were determined to be in the range of 1?×?10-14?cm2?s-1 to 1?×?10-18?cm2?s-1. At 40°C, the amount of migration into 95% ethanol after 10 days was 2?μg?dm-2. Isooctane is determined to be a good fatty food simulant that provides similar results for PET to those of fatty foods. |
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| Keywords: | Migration UV stabilizers polyethylene terephthalate diffusion food simulants food packaging |
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