Method for extracting lipid mixture containing phospholipids comprising polyunsaturated fatty acids from viscera of fish, method for preserving viscera prior to extraction, and lipid mixture extracted thereby
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United States of America Patent
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Mar 13, 2007
Grant Date -
Oct 9, 2003
app pub date -
Feb 12, 2003
filing date -
Mar 29, 2002
priority date (Note) -
Expired
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Abstract
The present invention provides a method for extracting a lipid mixture having a high percentage of phospholipids comprising polyunsaturated fatty acids. The method comprises the steps of (a) heating the viscera of fish with hot water or steam; and (b) extracting from the heated viscera of fish, using a solvent, the lipid mixture containing phospholipids comprising polyunsaturated fatty acids. The lipid mixture obtained by the present method contains phosphatidylserine comprising docosahexaenoic acid and phosphatidylethanolamine comprising docosahexaenoic acid in high concentration.
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