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

Author:
Torres, Carlos F., Vazquez, Luis, Señoráns, Francisco J., Reglero, Guillermo
Source:
journal of the American Oil Chemists' Society 2007 v.84 no.5 pp. 443-448
ISSN:
0003-021X
Subject:
Pseudozyma antarctica, conjugated linoleic acid, eicosapentaenoic acid, esterification, fractionation, liver, nitrogen, saponification, sharks, transesterification, triacylglycerol lipase
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.
Agid:
573107