Solvent extraction of lipid components from egg yolk solids
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The effects of solvent systems on extraction of lipid components from commercially spray-dried egg yolks were investigated. Hexane, hexane:isopropanol (2:1), and chloroform:methanol (2:1) were studied, and the effects of temperature of extraction and ratio of solvent to egg were examined in a 3×2×2 factorial design. Hexane removed more fat and phospholipid and less cholesterol and pigment than the more polar solvents. Increased solvent ratio extracted more of the lipid components, although temperature of the extraction had little effect on removal of the lipid components.
KeywordsCholesterol Lipid Component Phosphol Varian Model 634S Fresh Yolk
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- 3.Berquist, D.H.,Egg Science and Technology, 2nd edn., edited by W.J. Stadelman and O.J. Cotterill, AVI Publishing Co., Inc., Westport, CT, 1977, p. 197.Google Scholar
- 4.Melnick, D., U.S. Patent 3,563,765 (1971).Google Scholar
- 5.Official Methods of Analysis, 13th edn., Association of Official Analytical Chemists, Washington, DC, 1980, Method 17.004.Google Scholar
- 6.Official Methods and Recommended Practices of the American Oil Chemists' Society, edited by R.C. Walker, AOCS, Champaign, IL, 1984, Method BC 3–49.Google Scholar
- 7.Bartlett, G.R.,J. Biol. Chem. 234:468 (1959).Google Scholar
- 9.Posati, L.P., and M.L. Orr,USDA Handbook 8-1, Agricultural Research Service, 1976, Item No. 01-137.Google Scholar
- 10.Cook, F., and G.M. Briggs,Egg Science and Technology, 2nd edn., edited by W.J. Stadelman and O.J. Cotterill, AVI Publishing Co., Inc., Westport, CT, 1977, p. 92.Google Scholar
- 11.Warren, M.W., D.R. Davis and J. Sabbe,Ark. Farm Research. Sept.–Oct. (1987).Google Scholar