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Poster (Scientific congresses and symposiums)
Lipase-assisted synthesis of potential bio-based surfactants starting from lignocellulosic carbohydrates
Richard, Gaetan; Nott, Katherine; Paquot, Michel et al.
20104ème congrès “Biocatalysis in Food and Drink Industries”
 

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Keywords :
lipase; carbohydrates; bio-surfactants; co-solvant
Abstract :
[en] Surfactants constitute an important class of compounds with a lot of applications, especially in the food and beverage industries (emulsion forming and stabilization, antiadhesive and antimicrobial activities)1. With the prospect of synthesising new active compounds, white biotechnology offers efficient tools. Indeed, the use of enzymes as biocatalysts provides an interesting synthetic route in comparison to the chemical way that often requires high reaction temperatures and suffers from a lack of specificity, resulting in complex mixtures. Among all the biocatalysts available, lipases represent a class of industrial interest 2,3. In parallel, the starting material is also an important parameter : due to the depletion of petroleum reserves, its ever increasing price and various environmental aspects, the use of renewable or biomass resources is inevitable. Within the frame of a biorefinery project, we focused on the lipase-assisted modification of uronic acids. These carbohydrates can be obtained from lignocellulosic material, and, in the presence of fatty alcohols, the Candida antarctica lipase B catalyses the synthesis of amphiphilic compounds. Owing to the initial conditions used and the addition of co-solvents, we optimized the synthesis of these bio-based potential surfactants, and obtained a panel of various structures depending to the acyl acceptor used. The poster will present the details of these syntheses.
Research center :
Université de Liège - Gembloux Agro Bio Tech
Disciplines :
Chemistry
Author, co-author :
Richard, Gaetan ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle - Chimie générale et organique
Nott, Katherine ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Paquot, Michel ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Wathelet, Jean-Paul ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique
Language :
English
Title :
Lipase-assisted synthesis of potential bio-based surfactants starting from lignocellulosic carbohydrates
Publication date :
April 2010
Number of pages :
A0
Event name :
4ème congrès “Biocatalysis in Food and Drink Industries”
Event organizer :
INSA Toulouse
Event place :
Toulouse, France
Event date :
12 au 14 avril 2010
Audience :
International
Name of the research project :
TECHNOSE
Funders :
DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie [BE]
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