The semi-automatic packaging machine (Mondini, Brescia, Italy) completed the heatsealing
of bags by employing multiflex OPP/EVOH/PE film (weight:72 g m2; thickness: 75 lm) operating with O2, CO2, and water vapour permeabilities of 3 cm3 m2 day1 atm1, 10cm3 m2 - day1 atm1 and 3 g m2 day1, respectively (Cryovac, Sealed Air Corp., Italy)