Gas transmission rates of commercially available polyethylene and polypropylene films for modified atmosphere packaging

Abstract

1.50–1.66 and 1.74, respectively. Temperature had no definite effect on OTR and CO2TR of MPP. Mean OTR and CO2TR for MPP were 10,848 and 9,554 mL m-2 d-1, respectively. The average perforation diameter (D mp ) and density (d mp ) was 41.0 µm and 125 perforations per m2, respectively, for a 20 cm x 28 cm bag. Comparisons with published data showed the sample film to have gas transmission rates at the lower end of the range for such types of packaging film.