Transesterification of castor oil in a solvent-free medium using the lipase from Burkholderia cepacia LTEB11 immobilized on a hydrophobic support

We demonstrate, for the first time, the lipase-catalyzed ethanolysis of castor oil in a solvent-free system. The lipase used was that of Burkholderia cepacia LTEB11, immobilized on Accurel EP 100. With a loading of 4.5% (mass of enzyme preparation in relation to the mass of triacylglycerols in the castor oil) and an ethanol to oil molar ratio of 3:1, 90% conversion of fatty acids to their corresponding ethyl esters was achieved in 6 h. These results are comparable to results reported in the literature for the lipase-catalyzed ethanolysis of castor oil in supercritical CO2 and in systems containing n-hexane as the solvent. Our system has the advantage of being simpler to operate.

Bibliographic Details

Main Authors:	Machado Baron, Alessandra, Barouh, Nathalie, Baréa, Bruno, Villeneuve, Pierre, Mitchell, David Alexander, Krieger, Nadia
Format:	article biblioteca
Language:	eng
Subjects:	Q60 - Traitement des produits agricoles non alimentaires, P06 - Sources d'énergie renouvelable,
Online Access:	http://agritrop.cirad.fr/571255/ http://agritrop.cirad.fr/571255/1/document_571255.pdf
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