esterification; lipase; surfactant; water content; modeling; Novozym 435; lipase B of Candida antarctica
Abstract :
[en] 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.
Disciplines :
Biotechnology
Author, co-author :
Olive, Gilles ; Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Pompeu Torezan, Gabriela A.
Blecker, Christophe ; Université de Liège - ULiège > Chimie et bio-industries > Science des alim. et formul.
Language :
English
Title :
Influence of the water content in the synthesis of fructose laurate by immobilized lipase B of Candida antarctica (Novozym 435)
Publication date :
2012
Journal title :
Bulletin de la Société Royale des Sciences de Liège
ISSN :
0037-9565
eISSN :
1783-5720
Publisher :
Société Royale des Sciences de Liège, Liège, Belgium
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