METHOD FOR PRODUCING A DHA-CONTAINING FATTY ACID COMPOSITION

Preparation of a fatty acid composition comprises transesterifying a biomass obtained from Ulkenia sp. with e.g. at least one alcohol, preparing a solution in which the urea contains a part of the transesterified biomass and an organic solvent, concentrating the solution to form a precipitate contai...

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Bibliographische Detailangaben
1. Verfasser:	FABRITIUS, DIRK
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES BEER BIOCHEMISTRY CANDLES CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA DETERGENTS EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKINGOILS ENZYMOLOGY ESSENTIAL OILS FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS,OILS, OR FATTY ACIDS OBTAINED THEREFROM FATTY ACIDS FROM FATS, OILS OR WAXES FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS HUMAN NECESSITIES METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PERFUMES PROCESSES USING MICROORGANISMS PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE
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Beschreibung
Zusammenfassung:	Preparation of a fatty acid composition comprises transesterifying a biomass obtained from Ulkenia sp. with e.g. at least one alcohol, preparing a solution in which the urea contains a part of the transesterified biomass and an organic solvent, concentrating the solution to form a precipitate containing the urea and at least one part of the unsaturated fatty acid ester and an aqueous fraction and separating the precipitate. Preparation of a fatty acid composition, with at least 70 wt.% of docosahexaenoic acid and/or its alkyl ester in the fatty acid composition containing fatty acid and/or its derivative, comprises transesterifying a biomass obtained from Ulkenia sp. with at least one alcohol, at least one docosahexaenoic acid alkyl ester and an unsaturated fatty acid ester, preparing a solution in which the urea contains a part of the transesterified biomass and an organic solvent, cooling or concentrating the solution to form a precipitate containing the urea and at least one part of the unsaturated fatty acid ester and an aqueous fraction and separating the precipitate from the aqueous fraction. An independent claim is also included for the fatty acid composition obtained by the above method.