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A PROCEDURE FOR THE PRODUCTION OF REFINED CONCENTRATES OF FISH OIL, WHICH CONTAIN ALKYL ESTERS OF OMEGA-3 EICOSAPENTAENOIC AND DOCOSAHEXAENOIC ACIDS.
A PROCEDURE FOR THE PRODUCTION OF REFINED CONCENTRATES OF FISH OIL, WHICH CONTAIN ALKYL ESTERS OF OMEGA-3 EICOSAPENTAENOIC AND DOCOSAHEXAENOIC ACIDS.
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机译:一种鱼油精制产品的程序,其中精油含有OMEGA-3二十碳五烯酸和二十二碳六烯酸的烷基酯。
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摘要
Refining of fish waste product so that a concentrate of omega 3-fatty acid alkyl ester is formed with 20-30% eicosapentaenoic acid alkyl ester and 35-50% docosahexaenoic acid alkyl ester (both by weight) free from cholesterol. The omega 3-concentrate is produced through urea precipitation of the non- omega 3-fatty acid esters so that the filtrate from the precipitation may be extracted by means of hexane for the transmission of the omega 3-fatty acid esters and the cholesterol to the hexane extract. Hexane is thereafter removed. The remaining concentrate of the fatty acid esters with the cholesterol is cooled to a temperature of not lower than -50oC, whereby the cholesterol is crystallized. The remainder is a omega 3-concentrate with the composition mentioned above.
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