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Original Articles

Project SafeFoodPack Design: case study on indirect migration from paper and boards

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Pages 1703-1720 | Received 15 Nov 2016, Accepted 02 Apr 2017, Published online: 25 Apr 2017
 

ABSTRACT

Migration due to indirect contact with packaging caused several major sanitary crises, including the spread contamination of dry food by mineral oils and printing ink constituents from cardboard. The issues are still not fully resolved because the mechanisms have been insufficiently described and the relationship between design, contamination level, type of contaminant, and conditions of storage (time and temperature) are poorly understood. This study proposes a forensic analysis of these phenomena when food is separated from cardboard by a plastic layer. Practical relationships and advanced simulation scenarios were devised and validated against the long-term migration between 20 and 60°C of 15 substances. They were chosen to be representative of the main contaminants of cardboard: aliphatic and aromatic mineral oils, photo-initiators and plasticisers. Data were summarised as iso-contamination curves and iso-contamination times up to 2 years. Simple rules are illustrated to extrapolate the results to arbitrary conditions in order to identify critical substances and to estimate the plastic film’s thickness to keep the contamination within acceptable limits. Recommendations for the risk management of contamination routes without contact are finally drafted.

Acknowledgements

The authors thank Anne-Sophie Jury (3S’inPACK) for technical help.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was funded by the French National Research Agency’s project SafeFoodPack Design [grant number ANR-10-ALIA-009] and ACTIA’s (Association de Coordination Technique pour l'Iindustrie Agroalimentaire) project ‘MOAH-MOSH’, RMT ‘PropackFood’.

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