Bulletin de la Société Royale des Sciences de Liège

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Gilles Olive, Gabriela A. Pompeu Torezan & Christophe Blecker

Influence of the water content in the synthesis of fructose laurate by immobilized lipase B of Candida antarctica (Novozym 435)

(Volume 81 - Année 2012)
Article
Open Access
Mots-clés : esterification, lipase, surfactant, water content, modeling, Novozym 435, lipase B of Candida antarctica

Abstract

New synthesis conditions for a direct esterification of fructose by lauric acid with Novozym 435 as a catalyst are reported in this paper. With these new conditions, a conversion rate of 72 % was achieved, which is almost the same value as in the case of transesterification where no water as by-product is produced (74.6 %). The conversion rate of these reactions can be modeled as a function of the initial water content by a three-parameter power law for the esterification and by an exponential law for the transesterification. The influence of the water content on the mono over di-ester ratio will also be discussed to a lesser extent.

To cite this article

Gilles Olive, Gabriela A. Pompeu Torezan & Christophe Blecker, «Influence of the water content in the synthesis of fructose laurate by immobilized lipase B of Candida antarctica (Novozym 435)», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 81 - Année 2012, 82 - 89 URL : http://popups.ulg.be/0037-9565/index.php?id=3820.

About: Gilles Olive

University of Liège, Gembloux Agro-Bio Tech., Passage des Déportés 2, B-5030 Gembloux, Belgium et École Industrielle et Commerciale de la Ville de Namur (EICVN), Rue Pépin 2B, B-5000 Namur, Belgium

About: Gabriela A. Pompeu Torezan

University of Liège, Gembloux Agro-Bio Tech., Passage des Déportés 2, B-5030 Gembloux, Belgium

About: Christophe Blecker

University of Liège, Gembloux Agro-Bio Tech., Passage des Déportés 2, B-5030 Gembloux, Belgium