Patent ID: 7906666

Claim:
Continuous process of DHA enrichment of a solution of fatty acids or of derivatives thereof comprising less than 50% DHA relative to the total fatty acids of the solution or to the derivatives thereof, wherein the process comprises the steps of (a) simultaneous countercurrent injection, into a fractionating column of the flow of the solution of fatty acids or of derivatives thereof and of a flow of supercritical CO 2 at a temperature of less than or equal to 70° C. and at a pressure between 100×10 5 Pa and 160×10 5 Pa, wherein the level of supercritical CO 2 is between 30 and 70 and (b) recovery of a residue comprising at least 50% DHA relative to the total fatty acids of the residue or to derivatives thereof, wherein the DHA yield is greater than or equal to 60%.