Summary
The ability of seven lipase preparations to catalyse methyl ester synthesis in aqueous media was compared and the synthesis reaction (esterification or alcoholysis) determined. Three behaviours were observed: three enzymes catalysed ester synthesis by esterification of free fatty acids and one enzyme catalysed alcoholysis but the other three lipases did not catalyse a net ester synthesis under the conditions tested. The three groups also differed by the influence of methanol on the hydrolysis reaction. The first group was not significantly inhibited up to the highest methanol concentration tested (5 M). Hydrolysis in the presence of the enzyme of the second group was increasingly inhibited with increasing methanol concentrations. In the presence of the third group, hydrolysis was 40 to 50% inhibited for all the concentrations tested (0.2–5 M).
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Lecointe, C., Dubreucq, E. & Galzy, P. Ester synthesis in aqueous media in the presence of various lipases. Biotechnol Lett 18, 869–874 (1996). https://doi.org/10.1007/BF00154612
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DOI: https://doi.org/10.1007/BF00154612