EICOSAPENTAENOIC ACID ALKYL ESTER-CONTAINING COMPOSITION AND METHOD FOR PRODUCING SAME

Provided is a high-concentration and high-purity eicosapentaenoic acid-containing composition. A method for producing an eicosapentaenoic acid alkyl ester-containing composition, the method includes: (1) bringing a raw oil that contains an eicosapentaenoic acid alkyl ester into contact with an aqueo...

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Bibliographic Details
Main Authors HARATA, Masataka, NONAKA, Shingo, GOTO, Ichiro
Format Patent
LanguageEnglish
French
German
Published 03.11.2021
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
DETERGENTS
ESSENTIAL OILS
FATTY ACIDS THEREFROM
METALLURGY
ORGANIC CHEMISTRY
PERFUMES
PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS
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Summary:Provided is a high-concentration and high-purity eicosapentaenoic acid-containing composition. A method for producing an eicosapentaenoic acid alkyl ester-containing composition, the method includes: (1) bringing a raw oil that contains an eicosapentaenoic acid alkyl ester into contact with an aqueous solution that contains a silver salt, and then collecting an aqueous layer; (2) adding an organic solvent to the aqueous layer, and then collecting an organic solvent layer; and (3) subjecting the organic solvent layer to vacuum distillation at a temperature of 180 to 188°C and a tower top vacuum degree of 0.7 Pa or below, to recover the eicosapentaenoic acid alkyl ester from the organic solvent layer.
Bibliography:Application Number: EP20190902643