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Toxic Mineral Oils From Printing Inks And Recycled Cardboard Can Contaminate Food Products

June 10, 2011: 06:40 AM EST
A case study in Zurich, Switzerland, found that toxic mineral oils from printing inks can contaminate food products using recycled cardboard packaging. Results of tests conducted on packs of fine noodles showed that food speedily soaks up 10 times the suggested limit for concentration of these polluting oils from transport box. Researchers found that during the test period, the corrugated board contaminated the lowest packs inside the box with 6.1mg/kg mineral oil saturated hydrocarbons (MOSH), 10 times the migration limit of 0.6mg/kg. Improved recycled paperboard showed mineral oil migration amounting to 4.9mg/kg, while a printing ink with 3g/kg MOSH also contaminated the fine noodles with 0.6mg/kg MOSH.
Maurus Biedermann, Jan-Erik Ingenhoff, Martino Barbanera, Davide Garbini, Koni Grob, "Migration of Mineral Oil into Noodles from Recycled Fibres in the Paperboard Box and the Corrugated Board Transport Box as well as from Printing Inks: A Case Study", Packaging Technology and Science, June 10, 2011, © John Wiley & Sons, Ltd.
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