The present invention provides a chromatographic separation process for recovering a polyunsaturated fatty acid (PUFA) product, from a feed mixture, which process comprises introducing the feed mixture to a simulated or actual moving bed chromatography apparatus having a plurality of linked chromatography columns containing, as eluent, an aqueous alcohol, wherein the apparatus has a plurality of zones comprising at least a first zone and a second zone, each zone having an extract stream and a raffinate stream from which liquid can be collected from said plurality of linked chromatography columns, and wherein (a) a raffinate stream containing the PUFA product together with more polar components is collected from a column in the first zone and introduced to a nonadjacent column in the second zone, and/or (b) an extract stream containing the PUFA product together with less polar components is collected from a column in the second zone and introduced to a nonadjacent column in the first zone, said PUFA product being separated from different components of the feed mixture in each zone.

The present invention provides a chromatographic separation process for recovering a polyunsaturated fatty acid (PUFA) product, from a feed mixture, which process comprises introducing the feed mixture to a simulated or actual moving bed chromatography apparatus having a plurality of linked chromatography columns containing, as eluent, an aqueous alcohol, wherein the apparatus has a plurality of zones comprising at least a first zone and a second zone, each zone having an extract stream and a raffinate stream from which liquid can be collected from said plurality of linked chromatography columns, and wherein (a) a raffinate stream containing the PUFA product together with more polar components is collected from a column in the first zone and introduced to a nonadjacent column in the second zone, and/or (b) an extract stream containing the PUFA product together with less polar components is collected from a column in the second zone and introduced to a nonadjacent column in the first zone, said PUFA product being separated from different components of the feed mixture in each zone.

The present invention relates to the fibric acid derivatives of omega-3 fatty acids and their use in treating Type2 diabetes, obesity, hypertriglyceridemia, cardiovascular diseases, metabolic syndrome, cancer, Alzheimer's disease; and their use for modulating activity of peroxisome proliferator-activated receptors (PPARs).

The present invention relates to the fibric acid derivatives of omega-3 fatty acids and their use in treating Type2 diabetes, obesity, hypertriglyceridemia, cardiovascular diseases, metabolic syndrome, cancer, Alzheimer's disease; and their use for modulating activity of peroxisome proliferator-activated receptors (PPARs).

Provided is a free-polyunsaturated-fatty-acid-containing composition that has a total metal content of 0.1 ppm or less and that comprises at least one free polyunsaturated fatty acid having 20 or more carbon atoms, in an amount that is at least 80.0% of the amount of fatty acids in the composition; and a method for manufacturing a free-polyunsaturated-fatty-acid-containing composition, comprising: providing a raw material composition containing at least one polyunsaturated fatty acid having 20 or more carbon atoms; performing a hydrolysis treatment on a reaction solution prepared by combining the provided raw material composition, a lower alcohol, water having a total metal content of 0.01 ppm or less, and an alkali catalyst; and limiting the contact between the reaction composition and the metal after the hydrolysis treatment so that the product T [cm.sup.2×days] of the contact surface area [cm.sup.2] per 1 g and the contact time [days] between the composition and the metal is 100 or less.

Provided is a free-polyunsaturated-fatty-acid-containing composition that has a total metal content of 0.1 ppm or less and that comprises at least one free polyunsaturated fatty acid having 20 or more carbon atoms, in an amount that is at least 80.0% of the amount of fatty acids in the composition; and a method for manufacturing a free-polyunsaturated-fatty-acid-containing composition, comprising: providing a raw material composition containing at least one polyunsaturated fatty acid having 20 or more carbon atoms; performing a hydrolysis treatment on a reaction solution prepared by combining the provided raw material composition, a lower alcohol, water having a total metal content of 0.01 ppm or less, and an alkali catalyst; and limiting the contact between the reaction composition and the metal after the hydrolysis treatment so that the product T [cm.sup.2×days] of the contact surface area [cm.sup.2] per 1 g and the contact time [days] between the composition and the metal is 100 or less.

The present invention refers to alpha branched alkanoic and alkenoic acids of formula (I) ##STR00001## wherein X and R have the same meaning as given in the description. The invention further refers to perfume compositions and fragrance applications comprising them.

The present invention refers to alpha branched alkanoic and alkenoic acids of formula (I) ##STR00001## wherein X and R have the same meaning as given in the description. The invention further refers to perfume compositions and fragrance applications comprising them.

Zinc and copper (II) salts of the general formula CH.sub.2═C(R.sup.1)COO-M-OCOR.sup.2 are disclosed, wherein M-Zn or Cu, R.sup.1—H or CH.sub.3, R.sup.2—C.sub.2-C.sub.25 alkyl, or R.sup.2—CO—O— group is crotonate, or sorbate, or linoleate, excluding the compounds: CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—C.sub.2H.sub.5, CH.sub.2═CH—COO—Zn—O—CO—C.sub.2H.sub.5, CH.sub.2═CH—COO—Cu—O—CO—C.sub.2H.sub.5, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.4—CH.sub.3, CH.sub.2═CH—COO—Zn—O—CO—(CH.sub.2).sub.4—CH.sub.3, CH.sub.2═CH—COO—Zn—O—CO—(CH.sub.2).sub.6—CH.sub.3, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.6—CH.sub.3, CH.sub.2═CH—COO—Cu—O—CO—(CH.sub.2).sub.6—CH.sub.3, CH.sub.2═CH—COO—Zn—O—CO—(CH.sub.2).sub.14—CH.sub.3, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.16—CH.sub.3, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO-iso-C.sub.17H.sub.35, CH.sub.2═CH—COO—Zn—O—CO-iso-C.sub.17H.sub.35, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.17—CH.sub.3. Salts of the general formula wherein R.sup.2—C.sub.2-C.sub.25 alkyl, or R.sup.2—CO—O— group is crotonate, or sorbate, or linoleate, are applicable as biocides.

Zinc and copper (II) salts of the general formula CH.sub.2═C(R.sup.1)COO-M-OCOR.sup.2 are disclosed, wherein M-Zn or Cu, R.sup.1—H or CH.sub.3, R.sup.2—C.sub.2-C.sub.25 alkyl, or R.sup.2—CO—O— group is crotonate, or sorbate, or linoleate, excluding the compounds: CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—C.sub.2H.sub.5, CH.sub.2═CH—COO—Zn—O—CO—C.sub.2H.sub.5, CH.sub.2═CH—COO—Cu—O—CO—C.sub.2H.sub.5, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.4—CH.sub.3, CH.sub.2═CH—COO—Zn—O—CO—(CH.sub.2).sub.4—CH.sub.3, CH.sub.2═CH—COO—Zn—O—CO—(CH.sub.2).sub.6—CH.sub.3, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.6—CH.sub.3, CH.sub.2═CH—COO—Cu—O—CO—(CH.sub.2).sub.6—CH.sub.3, CH.sub.2═CH—COO—Zn—O—CO—(CH.sub.2).sub.14—CH.sub.3, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.16—CH.sub.3, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO-iso-C.sub.17H.sub.35, CH.sub.2═CH—COO—Zn—O—CO-iso-C.sub.17H.sub.35, CH.sub.2═C(CH.sub.3)—COO—Zn—O—CO—(CH.sub.2).sub.17—CH.sub.3. Salts of the general formula wherein R.sup.2—C.sub.2-C.sub.25 alkyl, or R.sup.2—CO—O— group is crotonate, or sorbate, or linoleate, are applicable as biocides.