C - Chemistry – Metallurgy – 11 – B
Patent
C - Chemistry, Metallurgy
11
B
C11B 1/10 (2006.01) B01D 11/04 (2006.01) C11B 3/00 (2006.01) C11B 7/00 (2006.01)
Patent
CA 2469647
A process for purifying a lipid composition having predominantly neutral lipid components having at least one long chain polyunsaturated fatty acid is disclosed. The process employs contacting the lipid composition with a polar solvent, such as acetone, wherein the solvent is selected such that the contaminants are less soluble in the solvent than in the long chain polyunsaturated fatty acid. The process is typically conducted at cooler temperatures including about 0 ~C. Upon precipitation of the contaminants from the lipid composition, a separation is conducted to remove the precipitated material from the lipid composition. The long chain polyunsaturated fatty acids can include ARA, DPA, EPA and/or DHA. The process effectively winterizes lipid compositions, thereby reducing the tendency of such compositions to become hazy.
L'invention concerne un procédé de purification d'une composition lipidique possédant de façon prédominante des composants lipidiques neutres comprenant au moins un acide gras polyinsaturé à longue chaîne. Le procédé consiste à mettre en contact la composition lipidique avec un solvant polaire, tel que l'acétone, le solvant étant sélectionné de manière que des contaminants soient moins solubles dans le solvant que ledit acide gras. Le procédé est généralement mis en oeuvre à des températures plus froides, notamment à environ 0 ·C. Au moment de la précipitation des contaminants de la composition lipidique
Diltz Sandra I.
Driver Robert H.
Dueppen Daniel G.
Zeller Samuel G.
Martek Biosciences Boulder Corp.
Martek Biosciences Corporation
Mbm Intellectual Property Law Llp
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