PROCESS FOR INCREASING THE STABILITY OF A COMPOSITION COMPRISING POLYUNSATURATED OMEGA-6 FATTY ACIDS
A processes for increasing the stability of a composition containing polyunsaturated an omega-6 fatty acid against oxidation proceeds by (i) providing a starting composition containing at least one polyunsaturated omega-6 fatty acid component; (ii) providing a lysine composition; (iii) admixing an aqueous, an aqueous-alcoholic or an alcoholic solution of starting composition and lysine composition, and subjecting a resulting admixture to spray drying conditions subsequently, thus forming a solid product composition containing at least one salt of a cation derived from lysine with an anion derived from the polyunsaturated omega-6 fatty acid; the product composition exhibiting a solvent content SC selected from the following; SC<5 wt %, SC<3 wt %, SC<1 wt %, or <0.5 wt %.
1 . A process for increasing the stability towards oxidation of a composition comprising a polyunsaturated omega-6 fatty acid, said process comprising:
(i) providing a starting composition comprising at least one polyunsaturated omega-6 fatty acid component;
(ii) providing a lysine composition;
(iii) admixing an aqueous, an aqueous-alcoholic or an alcoholic solution of starting composition and lysine composition, and subjecting a resulting admixture to spray drying conditions subsequently, thus forming a solid product composition comprising at least one salt of a cation derived from lysine with an anion derived from a polyunsaturated omega-6 fatty acid; the product composition exhibiting a solvent content SC selected from the following; SC<5 wt %, SC<3 wt %, SC<1 wt %, or SC<0.5 wt %.
2 . The process according to claim 1 , wherein lysine composition in (ii) is provided in such a manner that the ratio R=n(ca)/n(lys) of the amount of carboxylic acid functions n(ca) in the starting composition provided in (i) and the amount of lysine n(lys) in the lysine composition provided in (ii) is in a range selected from 0.9<R<1.1, 0.95<R<1.05, or 0.98<R<1.02.
3 . The process according to claim 1 , wherein the starting composition provided in (i) does not contain more than x(fe) wt % of fatty acid esters, wherein x(fe) is selected from 5, 3, 2, 1, 0.3, or 0.
4 . The process according to claim 1 , wherein starting composition in (i) and lysine composition in (ii) are provided in such a manner that at least sp wt % of the product composition consist of one or more salts of cations derived from lysine with anions derived from one or more polyunsaturated omega-6 fatty acids and other naturally occurring fatty acids, wherein sp is selected from 90, 95, 97, 98, 99, or 100.
5 . A composition obtainable by a process according to claim 1 .
6 . The process according to claim 1 , wherein said starting composition is a food comprising a polyunsaturated omega-6 fatty acid.
7 . The process according to claim 1 , wherein said starting composition is a nutritional product comprising a polyunsaturated omega-6 fatty acid.
8 . The process according to claim 1 , wherein said starting composition is a pharmaceutical product comprising a polyunsaturated omega-6 fatty acid.