  Using the unique capabilities of the ALICE detectors for particle
identification, different measurements have been performed to study the
properties of the hot and dense matter created in the Pb-Pb collisions at
sqrt(sNN)= 2.76 TeV. The analysis of the p-Pb data at sqrt(sNN) = 5.02 TeV
reveals that the suppression of high pt hadrons observed in heavy nuclei
collisions can not be explained as due to initial state effects. The systems
created in the p-Pb collisions do not show evidence of jet quenching but,
surprisingly, exhibit characteristics of flow. In this paper a review of the
main results on identified particle production measured in different colliding
systems is presented, data are also compared to models.
