The film (75
micron thickness) of the vacuum pack pouches (Allfo vakuumverpackungen
Hans Bresele KG, Germany) were composed of a mixture
of polyamide (PA) and polyethylene (PE) with an oxygen
and carbon dioxide permeability rate of 60 cm3/m2/24 h/atom
and 180 cm3/m2/24 h/atom respectively (23 C, 75% RH)