Issue |
MATEC Web Conf.
Volume 379, 2023
18e Congrès de la Société Française de Génie des Procédés (SFGP2022)
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Article Number | 01006 | |
Number of page(s) | 8 | |
Section | Développements méthodologiques pour le Génie des Procédés / Methodologies for Chemical Engineering | |
DOI | https://doi.org/10.1051/matecconf/202337901006 | |
Published online | 12 May 2023 |
Chemical imaging of contaminated recycled paper and board: Towards identification of the causality of food contamination
1 Université Paris-Saclay, INRAE, AgroParisTech, UMR SayFood, 91120, Palaiseau, France
2 LNE, Laboratoire National de Métrologie et d’Essais, 78190, Trappes, France
Contamination of recycled paper and board food packaging by mineral oil hydrocarbons caused several crises in the past years. Although the migration from paper and board to foodstuffs has been proved many times, the contamination mechanisms and causalities remain undetermined and face unresolved issues. This study takes part in the collaborative project FoodSafeBioPack, which aims at evaluating the migration of potentially carcinogenic polyaromatic molecules from recycled paper and board packaging to food. New chemical imaging methods are used to follow this contamination at the microscopic scale (fibers and fibrous network). The first images acquired of polyaromatic molecules distribution on fibers were used to develop a methodology that will help to follow their migration. The influence of using different solvents and molecules on the initial chemical potential is discussed. The description of the paper structure and initial conditions of transfer will support the development of a microscopic mass transfer model.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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