Food contamination by hydrocarbons from packaging materials is a widespread problem. - GreenMedInfo Summary
Food contamination by hydrocarbons from packaging materials determined by coupled LC-GC.
Z Lebensm Unters Forsch. 1991 Sep;193(3):213-9. PMID: 1962505
Kantonales Labor, Zürich, Switzerland.
Paraffins from raw extracts of foods and packing materials were isolated by LC and directly transferred to GC, applying concurrent eluent evaporation and a loop-type interface. Paraffins from various packing materials have been characterized: sisal bags, cardboard boxes, plastic films, wax-coated paper and cardboard as well as paraffin coatings. Important food contamination was found for sisal bags, cardboard boxes, and wax-coated paper/cardboard. Contamination by paraffin coatings on cheese was surprisingly small.