WP4 - Assessment of packaging physical-chemical stability and chemical safety;
Workpackage Leader: Hélène Coussy - Institut National de la Recherche Agronomique (INRA)
WP objectives: The objective of WP4 are to investigate the suitability of packaging materials developed in WP3 as food contact materials. This will include 4 specific objectives:
• To evaluate the structural and physical-chemical stability of some selected packaging materials by studying the influence of severe yet realistic conditions of storage and food contact on the evolution of their mechanical, thermal and barrier properties, in relation to the evolution of their structure at different scales.
• To assess the microbiological stability of some packaging materials by studying the influence of conditions of storage and food contact on the characteristics of bio-films formation in relation to the surface properties of the packaging materials.
• To investigate the chemical safety due to raw constituents by identifying potentially migratable and toxic substances and evaluating the decontamination efficiency of production/extraction processes.
• To study the chemical migration of undesirable and potentially toxic compounds through the final materials by studying the migration of a range of relevant molecules already present in raw materials as well as a range of representative surrogates and by considering mass transfer modelling approaches.