Reference : Chemical and enzymatical modifications of sugar derived from lignocellulose
Scientific congresses and symposiums : Poster
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/22626
Chemical and enzymatical modifications of sugar derived from lignocellulose
English
Richard, Gaetan mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Laurent, Pascal mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Nott, Katherine mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Richel, Aurore mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Helleputte, Murielle [Université de Liège - ULg > > Gembloux Agro-Bio Tech >]
Paquot, Michel mailto [Université de Liège - ULg > > Gembloux Agro-Bio Tech >]
Wathelet, Jean-Paul mailto [Université de Liège - ULg > > Gembloux Agro-Bio Tech >]
Jan-2009
A4
No
No
International
Carbohydrate as Organic Raw materials V : building a sustainable future
January 20-23th, 2009
Faculté des sciences de l'université de Lisbonne
Lisbonne
Portugal
[en] lipase ; glucosidase ; glucuronic acid ; galacturonic acid ; uronic acids ; chemical synthesis ; surfactants ; cellobiose
[en] Actually, biorefinery is increasingly considered as a promising alternative to petroleum chemistry, since it aims at not only the replacement of fossil energy but also the development of chemicals from biomass, with applications such as detergents, phytopharmaceutics, solvents, plastics, etc.
The valorisation of carbohydrates from renewable raw materials is currently the subject of numerous researches. In this context, the synthesis of new surfactants derived from the sugars issued from the lignocellulose hydrolysis was undertaken by chemical or enzymatic routes. In this poster, the examples of glucose, cellobiose and uronic acids will be discussed.
Whatever the way used, the reaction conditions (use of a catalyst, protection/deprotection steps, type of solvent, presence of co-solvent, reactant concentrations, etc) were optimized to yield a panel of carbohydrate derivatives (some examples of the structures obtained are given above). These differ by the nature of the alkyl chain (in length and in degree of saturation), the type of chemical bond (amide, ester, thioester, acetal), and the position of substitution.
The impact of these differences on the techno-functional properties of these modified sugars will be evaluated.
Région wallonne : Direction générale des Technologies, de la Recherche et de l'Energie - DGTRE
Programme d'Excellence TECHNOSE
Researchers ; Professionals
http://hdl.handle.net/2268/22626

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Abstract CORM V 2009 - Gaetan Richard.pdfAuthor preprint10.81 kBView/Open
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