The low critical temperature of CO2 can be a valuable factor in the extraction of thermolabile substances, namely, carotenoids. Nevertheless, the degree of degradation of βcarotene at oxidation and isomerization during SCFE is the subject of discussion in the scientific literature. Chang and Randolph [11]reported that βcarotene oxidizes to CO2 with the formation of epoxy compounds. In contrast, Jay et al.[12, 13] did not find evidence of the oxidation of βcarotene in the use of CO2 as a solvent, while Cocero et al. [14] state that these reactions are not possible from the chemical viewpoint. These processes are more intrinsic in the isolation of carotenoids by accelerated solvent extraction (ASE), where isomerization processes lead to a substantial decrease in the fraction of the βcarotene in extract [15].