Overall migration from commercial coextruded food packaging multilayer films and plastics containers into official EU food simulants

摘要

The overall migration from a wide range of commercial five-layer coextruded packaging films into aqueous food simulants (distilled water, 3 percent aqueous acetic acid) and alternative fatty food simulant (iso-octane) was studied. The overall migration from commercial plastics cups (PS, HIPS, and PP) used for icecream or yogurt packaging into distilled water and 3 percent aqueous acetic acid was also studied. Test conditions for packaging material/food simulant contact and method of overall migration analysis were according to the EU directives and CEN-standards. The results showed that for all tested five-layer films and plastics (PS, HIPS, and PP) cups values of overall migration into aqueous simulants (0.11-0.79 mg/dm~2, 2.3-15.9 rng/l) and (<0.10-0.41 mg/dm~2, <0.80-3.1 mg/l) were significantly lower than the upper limit (10 mg/dm~2) for overall migration from plastic packaging materials and articles into food and food simulants set by the EU Directive 90/128/EEC and their revisions. The overall migration values from five-layer materials into iso-octane were significantly higher (0.94-8.23 mg/dm~2, 18.8-164.7 mg/l) than the above values but are still lower than the upper limit for overall migration. Global migration values of five-layer films into aqueous food simulants seems to be independent of material thickness. In contrast, overall migration into iso-octane increases with film thickness.