Process for producing fat comprising triglyceride containing...

C - Chemistry – Metallurgy – 12 – P

Patent

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C12P 7/64 (2006.01) A23C 9/152 (2006.01) A23C 11/04 (2006.01) A23K 1/16 (2006.01) A23L 1/30 (2006.01) A61K 31/22 (2006.01) A61K 31/232 (2006.01) C11C 3/00 (2006.01) C11C 3/08 (2006.01) C11C 3/10 (2006.01)

Patent

CA 2452401

A process for producing a fat comprising a triglyceride having a medium-chain fatty acid bonded in each of the 1-position and 3-position and a highly unsaturated fatty acid bonded in the 2-position, which comprises causing a lipase fixed to a porous ion-exchange resin support having a pore diameter of about 100 .ANG. or larger and specifically acting on the 1- and 3-position ester bonds to act on a mixture of a medium-chain fatty acid derivative and a starting-material fat which comprises at least one highly unsaturated fatty acid selected from the group consisting of omega-6 highly unsaturated fatty acids having 18 or more carbon atoms and 3 or more double bonds and omega-9 highly unsaturated fatty acids having 18 or more carbon atoms and 2 or more double bonds but contains no omega-3 highly unsaturated fatty acids; a fat or triglyceride obtained by the process; and a use thereof in a food, feed, and medicinal composition.

L'invention concerne une méthode de production d'une matière grasse, qui comprend un triglycéride contenant un acide gras à chaîne moyenne fixé à la position 1 et à la position 3, et un acide gras fortement insaturé fixé à la position 2. La méthode consiste à amener une lipase, fixée à un support de résine poreux échangeur d'ions dont le diamètre des pores est d'au moins environ 100 .ANG. et agissant sur les liaisons ester aux positions 1 et 2, à agir sur un mélange d'un dérivé d'acide gras à chaîne moyenne et d'une matière grasse de départ. Le mélange comprend au moins un acide gras fortement insaturé sélectionné dans le groupe constitué par des acides gras oméga-6 fortement insaturés présentant au moins 18 atomes de carbone et au moins 3 liaisons doubles, et des acides gras oméga-9 fortement insaturés présentant au moins 18 atomes de carbone et au moins 2 liaisons doubles, ledit mélange étant exempt d'acides gras oméga-3 fortement insaturés. L'invention concerne en outre une matière grasse ou un triglycéride obtenu par la méthode de l'invention, et son utilisation dans un aliment, un aliment pour bétail ou dans une composition médicinale.

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