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Comparison of lipase-catalysed esterification in supercritical carbon dioxide and in n-hexane

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Summary

Oleic acid esterification by ethanol has been performed by an immobilized lipase fromMucor miehei in supercritical carbon dioxide and in n-hexane as solvents. In both media, determination of apparent kinetic constants has been achieved and influence of water content has been shown to be different due to various rates of water solubilities. Stability of the lipase has been proved to be correct and similar in both solvents. Inhibition by ethanol excess has been found but is greater in n-hexane. That can explain the higher initial velocities obtained in supercritical carbon dioxide for the highest ethanol concentrations.

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Authors and Affiliations

  1. Département de Génie Biochimique et Alimentaire, UA-CNRS 544, Institut National des Sciences Appliquées, Avenue de Rangueil, 31077, Toulouse Cédex, France

    A. Marty, W. Chulalaksananukul, J. S. Condoret, R. M. Willemot & G. Durand

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  1. A. Marty
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  2. W. Chulalaksananukul
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  3. J. S. Condoret
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  4. R. M. Willemot
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  5. G. Durand
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Marty, A., Chulalaksananukul, W., Condoret, J.S. et al. Comparison of lipase-catalysed esterification in supercritical carbon dioxide and in n-hexane. Biotechnol Lett 12, 11–16 (1990). https://doi.org/10.1007/BF01028485

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  • DOI: https://doi.org/10.1007/BF01028485

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