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  4. Adsorption of laminaribiose in an in-situ product recovery process
 
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Adsorption of laminaribiose in an in-situ product recovery process

Publikationstyp
Journal Article
Date Issued
2011
Sprache
English
Author(s)
Waluga, Thomas  
Scholl, Stephan  
Institut
Prozess- und Anlagentechnik V-4  
TORE-URI
http://hdl.handle.net/11420/4639
First published in
AIP conference proceedings  
Number in series
1453, issue 1
Start Page
271
End Page
275
Citation
AIP Conference Proceedings 1 (1453): 271-275 (2011)
Publisher DOI
10.1063/1.4711187
Publisher
American Institut of Physics
With the decreasing availability of fossil carbon sources new synthesis routes for pharmaceuticals and finechemicals find growing interest. Higher oligosaccharide laminaribiose can be produced by enzymatic synthesis from inexpensive sucrose. For an economic process an in-situ product removal by adsorption is investigated. BEA 50 zeolite shows high potential for application due to its good adsorption properties. Isotherms show Langmuir behavior and adequate loadings of nearly 100 mg · g-1 can be reached. Other intermediates formed during the process do not adsorb on this zeolite or show weaker adsorption. Further thermal desorption can be used to regain laminaribiose. However the use of BEA 50 zeolite needs a sophisticated desorption process because of the zeolites' high acidity which catalyzes the degradation of laminaribiose. Hence lower temperatures have to be used or combined with displacement desorption. © 2012 American Institute of Physics.
Subjects
Adsorption
Carbohydrates
Ispr
Zeolites
DDC Class
530: Physics
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