Concentrate of polyunsaturated fatty acid ethyl esters and prepa

Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...

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554167, 554170, 554175, 554184, C11B 300

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active

056798091

ABSTRACT:
A composition concentrated in ethyl esters of polyunsaturated fatty acids is prepared by mixing a refined oil rich in polyunsaturated fatty acids with ethanol in the presence of a catalyst to obtain an ethanolyzate containing a glycerol phase and fatty acid ethyl ester phase. The fatty acid ethyl ester phase is separated from the glycerol phase and mixed with urea and ethanol to form a mixture, which is cooled to form a liquid phase containing fatty acid ethyl esters and a solid phase containing insoluble inclusion complexes. The liquid phase is separated from the solid phase to obtain a fraction enriched in ethyl esters of polyunsaturated fatty acids.

REFERENCES:
patent: 4377526 (1983-03-01), Fujita et al.
patent: 4776984 (1988-10-01), Traitler et al.
patent: 5106542 (1992-04-01), Traitler et al.
patent: 5130449 (1992-07-01), Lagarde et al.

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