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An Efficient Methodology for the Preparation of Alkoxyglycerols Rich in Conjugated Linoleic Acid and Eicosapentaenoic Acid

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Journal of the American Oil Chemists' Society

Abstract

Saponification of a raffinate obtained by supercritical fluid fractionation of shark liver oil was utilized for the production of an unsaponifiable fraction enriched in nonesterified alkoxyglycerols. Re-esterification of the alkoxyglycerols produced with conjugated linoleic acid (CLA) and eicosapentaenoic acid in the presence of Candida antarctica lipase B was then studied. High yields (>90%) of diesterified alkoxyglycerols were obtained via esterification and transesterification with CLA, their respective ethyl ester, and eicosapentaenoic ethyl ester. The effect of a continuous purge stream of nitrogen on the kinetics of the reactions was also evaluated.

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Acknowledgments

This work corresponds to preliminary studies of the project AGL2006-02031/ALI by Ministerio de Educación y Ciencia (Spain). This work was also supported by the Comunidad Autonoma de Madrid (ALIBIRD, project number S-505/AGR-0153). A postdoctoral contract (Programa Ramon y Cajal) for Carlos Torres was provided by the Ministerio de Ciencia y Tecnologia (Spain). A predoctoral fellowship for Luis Vazquez, provided by the Comunidad Autonoma de Madrid, is also acknowledged. We also want to thank the SOLUTEX company (Spain) for their support.

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Correspondence to Guillermo Reglero.

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Torres, C.F., Vazquez, L., Señoráns, F.J. et al. An Efficient Methodology for the Preparation of Alkoxyglycerols Rich in Conjugated Linoleic Acid and Eicosapentaenoic Acid. J Amer Oil Chem Soc 84, 443–448 (2007). https://doi.org/10.1007/s11746-007-1062-4

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  • DOI: https://doi.org/10.1007/s11746-007-1062-4

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