20130261326 | PROCEDURE FOR STABILISING POLYUNSATURATED FATTY ACIDS WITH METAL HYDRIDES - The invention relates to a procedure for stabilising polyunsaturated fatty acids with selective reducing agents. In particular, the invention relates to a process of preparation of polyunsaturated acids of the omega-3 series, as such or in the form of esters, which comprises treatment of fish oil or a mixture of acids with urea, and subsequent treatment with a metal hydride, preferably sodium borohydride. The polyunsaturated fatty acids of greatest interest present in fish oil are docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). | 10-03-2013 |