Abstract: The invention relates to structured lipid mixtures corresponding to formula (I): characterized in that R1CO, R2CO and R3CO independently of one another represent (i) linear saturated acyl groups containing 6 to 12 carbon atoms or (ii) the acyl group of conjugated linoleic acid (CLA) and/or an omega-3 or omega-6 fatty acid (OF), with the proviso that the quantity of CLA acyl groups amounts to 3 to 50 mol-% and the quantity of OF acyl groups to 5 to 25 mol-%, based on the quantity of acyl groups. The mixtures are preferably made by subjecting a mixture of component (a) a medium-chain triglyceride; and component (b) a CLA, an (OF), a TG-CLA (TG-OF) or a mixture thereof to enzymatic transesterification in the presence of a vegetable, marine or microbial oil.

Abstract: The disclosed invention provides a process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil (CTO), characterised in that the CTO is subjected to the following steps: (a) reacting the free fatty acids present in the CTO with lower alcohols; (b) separating the fatty acid lower alkyl esters thus obtained from the remaining CTO to produce a first stream of fatty acid esters; (c) esterifying the sterols in the remaining CTO with boric acid; (d) separating the remaining rosin acids from the sterol borates previously obtained to produce a second stream of rosin acids; and (e) converting said sterol borates into the free sterols to produce a third stream of free sterols.

Abstract: Processes for preparing conjugated linoleic acid are described wherein a conjugated linoleic acid lower alkyl ester is subjected to hydrolysis in the presence of an enzyme to form a hydrolyzate comprising a conjugated linoleic acid and a lower alkanol, wherein at least a portion of the lower alkanol is continuously removed; the hydrolyzate is separated into an organic phase and an aqueous/alcoholic phase; and the conjugated linoleic acid is separated from the organic phase.

Abstract: The disclosed invention refers to a process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil (CTO), which is characterised by the following steps: (a) reacting the free fatty acids present in the CTO with lower alcohols; (b) esterifying the sterols in the CTO with boric acid or transesterifying the sterols with a catalyst; (c) separating the fatty acid lower alkyl esters and rosin acids from the remaining sterol borate esters or sterol esters of fatty acids to produce a stream of sterol esters; (d) separating the fatty acid alkyl esters from the rosin acids to produce a first stream of fatty acid alky esters and a second stream of rosin acids; and (e) converting the sterol esters into the free sterols to produce a third stream of free sterols.

Abstract: Processes for preparing fatty acids are described wherein a C4-C12 fatty acid methyl ester is subjected to hydrolysis in the presence of an enzyme to form an organic phase comprising a C4-C12 fatty acid and an aqueous phase comprising methanol, wherein at least a portion of the methanol is continuously removed; and the organic phase is subsequently separated from the aqueous phase, and optionally, where the organic phase further comprises an unhydrolyzed portion of the C4-C12 fatty acid methyl ester, the unhydrolyzed portion of the C4-C12 fatty acid methyl ester is separated from the C4-C12 fatty acid.

Abstract: Processes for preparing conjugated linoleic acid are described wherein a conjugated linoleic acid lower alkyl ester is subjected to hydrolysis in the presence of an enzyme to form a hydrolyzate comprising a conjugated linoleic acid and a lower alkanol, wherein at least a portion of the lower alkanol is continuously removed; the hydrolyzate is separated into an organic phase and an aqueous/alcoholic phase; and the conjugated linoleic acid is separated from the organic phase.

Abstract: Processes for the enzyme-catalyzed production of triglycerides using polyunsaturated fatty acids, in which (a) the reaction of polyunsaturated fatty acids and/or C1-4 alkyl esters thereof with glycerol in vacuo in the presence of an immobilized enzyme to form their triglycerides is accelerated by addition of an additive from the group of weakly basic salts, complexing agents and ion exchangers and/or addition of a weakly basic salt and/or addition of an entraining agent in the form of a solvent or a gas and/or addition of glycerol-binding adsorbers and/or heat treatment of the partial glyceride intermediate product, (b) the immobilized enzymes are removed from the triglyceride by separation or filtration and (c) the remaining fatty acids and/or C1-4 alkyl esters thereof are removed from the triglyceride by distillation, refining or extraction.

Abstract: Processes for the enzyme-catalyzed synthesis of triglycerides containing polyunsaturated fatty acids in which the synthesis is preceded by a pre-hydrolysis in which (a) C1-4 alkyl esters of polyunsaturated fatty acids are completely or partly hydrolyzed in vacuo with continuous addition of water or are partly hydrolyzed in several stages without vacuum, (b) after the hydrolysis, the water is removed by separation or distillation and (c) the synthesis of the polyunsaturated fatty acids with glycerol in vacuo in the presence of an enzyme to form their triglycerides is carried out under low-water conditions, (d) the enzymes are removed from the triglyceride by separation or filtration and (e) the remaining fatty acids and/or possible residues of C1-4 alkyl esters are removed from the triglyceride by distillation or refining; the pre-hydrolysis and the subsequent synthesis preferably being carried out as a one-pot process in the same reactor and in the presence of the same enzyme.

Abstract: Disclosed is a method for obtaining 12-hydroxystearinic acid and the salts thereof from a native fat or oil, especially ricinoleic oil, characterized in that a) the native fat or oil is hydrolized under the catalytic influence of one or several enzymes at 15-50° C. to obtain ricinoleic acid b) the glycerol thus arising and the enzyme are separated, c) the hydrolysate is catalytically hydrolized, d) the product thus obtained is formulated.