Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2075690 | Biocatalysis and Agricultural Biotechnology | 2012 | 7 Pages |
Abstract
Enzymatic conversion of fish oil free fatty acids (FFA) or fatty acid ethyl esters (FAE) into glycerides via esterification or transesterification was examined. The reactions catalyzed by Lipozyme™ 435, a Candida antarctica lipase, were optimized. Influence on conversion yields of fatty acid chain length, saturation degree, temperature, enzyme dosage, molar ratio glycerol:fatty acids, acyl source composition (w/w ratio FFA:FAE), and reaction time was evaluated collectively by multiple linear regression. All reaction variables influenced the conversion into glycerides. Transesterification of FAE produced the highest yields of 94–95% (w/w) conversion yield at 1:3 glycerol:FAE, 25 h, 66 °C, enzyme dosage 3.1%w/w.
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Authors
Helle C. Ravn, Marianne L. Damstrup, Anne S. Meyer,