Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Reexamination Certificate
2003-10-31
2009-02-17
Sullivan, Daniel M (Department: 1621)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
C435S041000, C435S135000, C435S174000, C435S176000
Reexamination Certificate
active
07491522
ABSTRACT:
Marine oil compositions which contain EPA and DHA as free acids or hexyl esters are esterified with ethanol in the presence of a lipase catalyst under essentially organic solvent-free conditions and separated by distillation.
REFERENCES:
patent: 6518049 (2003-02-01), Haraldsson et al.
patent: 2350610 (2000-06-01), None
patent: WO 95/24459 (1995-09-01), None
patent: WO 00/73254 (2000-12-01), None
Separation of Eicosapentaenoic Acid and Docosahexaenoic Acid in Fish Oil by Kinetic Resolution Using Lipase Gudmundur G. Haraldsson and Bjorn Kristinsson Journal of the American Oil Chemists Society vol. 75, No. 11 (1998).
The preparation of concentrates of Eicosapentaenoic Acid and Docosahexaenoic acid by Lipase-catalyzed transesterification of fish oil with ethanol Gudmundur G. Haraldsson, Bjorn Kristinsson, Ragnheidur Sigurdardottir, Gudmundur G Gudmundsson, and Harald Breivik Journal of American Oil Chemists Society, vol. 74, No. 11 (1997).
Haraldsson, G.G. et al. Separaton of Eicosapentaenoic Acid andDocosahexaneoic Acid in Fish Oil by Kinetic Resolution Using Lipase, 1998, The Journal of American Oil Cchemists' Society, vol. 75, No. 11, pp. 1551-1556.
Brevik, H. et al., Preparation of Highly Purified concentrates of Eicosapentaenoic Acid and Docosahexaenoic Acid, 1997, The Journal of American Oil Chemists' Society, vol. 74, No. 11, pp. 1462-1428.
Gudmundur G. Haraldsson et al., “Separation of Eicosapentaenoic Acid and Docosahexaenoic Acid in Fish Oil by Kinetic Resolution Using Lipase,” vol. 75, No. 11 (1998), pp. 1551-1556.
Gudmundur G. Haraldsson et al., “The Preparation of Concentrates of Eicosapentaenoic Acid and Docosahexaenoic Acid by Lipase-Catalyzed Transesterfication of Fish Oil with Ehtanol,” vol. 74, No. 11 (1997), pp. 1419-1424.
Olivier Bousquet et al., “Counter-Current Chromatographic Separation of Polyunsaturated Fatty Acids,” pp. 211-216.
Harald Breivik et al., “Preparation of Highly Purified Concentrates of Eicosapentaenoic Acid and Docosahexaenoic Acid,” vol. 74, No. 11 (1997), pp. 1425-1429.
Database WPI, Week 199432, Derwent Publications Ltd., London, GB; AN 1994-260804 & JP 61 92683 A(Shokuhin Sangyo High Separation System), Jul. 12, 1994.
STN International, File CAPLUS, CAPLUS accession No. 1992:406541, Document No. 117:6541, Tanaka, Yukihisa et al: “Preparative separation of acylglycerol by centrifugal partition chromatography (CPC). II. Concentration of EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) from lipase-hydrolized fish oil”; & Yukagaku (1992), 41(4), 312-16.
Halldorsson Arnar
Haraldsson Gudmundur G.
Thorstad Olav
Cutliff Yate′ K
Fitzpatrick ,Cella, Harper & Scinto
Pronova Biocare AS
Sullivan Daniel M
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