These results showed the efficiency of high pressure treatment of 500 MPa to reduce or inactivate microorganisms. Indeed this treatment
was able to inactivate LAB and prevent its regrowth for 22 days of chilled storage and therefore, increase the shelf-life of products.
Globally, the atmosphere packaging appeared to have no effect on the evolution of AMC and LAB counts. However, it is known that the composition of the atmosphere packaging creates a selection pressure on the microflora of meat and beyond the apparent similar population level in samples packaged under both atmospheres, it is likely that bacterial species composing both ecosystems would be different. This has to be further investigated. Considering lipid oxidation aspect, although TBARs values were shown to be slightly higher in pressurized samples, the effect of pressurization on TBARs was shown to be neg-ligible regarding the effect of ambient air alone. Hence if MAP has no synergistic effect on microbial stabilization in these experiments, it remains essential to prevent lipid oxidation, which is related to sensorial quality and also taken into account for shelf-life optimization.