Document Detail


Kinetic studies and mathematical model for sucrose conversion by Aspergillus niger fructosyl-transferase under high hydrostatic pressure.
MedLine Citation:
PMID:  14505015     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The effect of pressure on the kinetically controlled synthesis reaction catalyzed from sucrose by Aspergillus niger fructosyl-transferase was investigated at pH 5.5 and 40 degrees C. The overall reaction was split up into five main reactions that were studied under pressure in initial rate conditions with various substrate concentrations in the absence or in the presence of glucose 50 g/l. A global reaction model was worked out according to the mathematical expression of the initial rates as the products of a polynomial rational function of substrate concentration and a corrective term introducing pressure. Experimental data from sugar concentrations were correctly described by the model during the course of the reaction under pressure. Raising the pressure induced a decrease in fructo-oligosaccharides yield by inhibiting the main transfer reaction without affecting sucrose hydrolysis.
Authors:
C Vannieuwenburgh; A Guibert; D Combes
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Publication Detail:
Type:  Journal Article     Date:  2002-02-12
Journal Detail:
Title:  Bioprocess and biosystems engineering     Volume:  25     ISSN:  1615-7591     ISO Abbreviation:  Bioprocess Biosyst Eng     Publication Date:  2002 Apr 
Date Detail:
Created Date:  2003-09-23     Completed Date:  2003-12-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088505     Medline TA:  Bioprocess Biosyst Eng     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  13-20     Citation Subset:  -    
Affiliation:
Béghin-Say, Laboratoire de recherche, Toulouse, France.
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