It is evident that during the 2 days of exposition in the display
case, microorganisms exhibited no growth in patties removed from
the master bag, most likely due to the residual antibacterial effect
of the CO2 present in the master bag itself. In contrast, patties never
stored in the master bag showed an increase in all indexes during
the display life. It is important to highlight that the microbial
content (especially CBT and LAB) in patties from the master bags
was higher at the beginning of the display life compared to time
0 of control samples due to the longer storage leading to an
increase in CBT and LAB of almost one order of magnitude