Optimization of the gas permeability of thermoformed packaging by selection of materials, process parameters and design Hasselt University
To maintain organoleptic and nutritional quality and microbial safety of a food product, packaging must guarantee an optimal gas barrier, e.g. for oxygen, carbon dioxide and/or water vapor, and this at the desired temperature and relative humidity (RH). Often companies use the oxygen transmission rate (OTR) of the flat film also for the thermoformed packaging. This is however an overestimate of the actual gas barrier of the packaging! In a ...