Esterification of myristic acid in supercritical carbon dioxide

Srivastava, S and Madras, Giridhar (2003) Esterification of myristic acid in supercritical carbon dioxide. In: The Journal of Supercritical Fluids, 27 (1). pp. 55-64.

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Abstract

The esterification of myristic acid with ethanol was studied with a commercial lipase (crude Hog pancreas lipase, HPL). The reaction was investigated in solvent-free conditions and in two solvents: supercritical carbon dioxide (SCCO2) and acetonitrile. Conversions of up to 76% nitrile, respectively. However, for similar enzyme concentrations, 37% of the myristic acid was converted to ester in SCCO2 but only 4% was converted in acetonitrile and solvent-free conditions. Various parameters like temperature, water and ethanol concentrations that influenced the reaction were also investigated. Ethanol was found inhibitory for the reaction in SCCO2. Addition of water led to sharp reduction in the conversions of myristic acid.

Item Type:	Journal Article
Publication:	The Journal of Supercritical Fluids
Publisher:	Elsevier Science.
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Myristic acid; Esterification; Pancreas lipase; Supercritical carbon dioxide.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	17 Jul 2009 08:54
Last Modified:	19 Sep 2010 04:54
URI:	http://eprints.iisc.ac.in/id/eprint/16899

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