Supercritical CO 2 as a Valuable Tool for Aroma Technology.

This review addresses the possibilities of using supercritical carbon dioxide (SC-CO 2 ) in the flavor industry in extraction and fractionation processes and its use as a reaction medium to generate aroma esters. The advantages and disadvantages are presented, comparing SC-CO 2 processing with traditional methods. The most distinguishable features of SC-CO 2 include mild reaction conditions, time savings, fewer toxicity concerns, higher sustainability, and the possibility of modulating solvent selectivity according to the process conditions (such as pressure and temperature). Thus, this review indicates the potential of using SC-CO 2 to obtain a high selectivity of compounds that can be applied in aroma technology and related fields.