Document Detail


On-line dialysis of organic acids from a Propionibacterium freudenreichii fermentation: evaluation of a new pH control strategy.
MedLine Citation:
PMID:  15304729     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The efficiency of an ion exchange system coupled to a bioreactor to extract on-line inhibitory organic acids produced was evaluated. Batch fermentations without dialysis and fed-batch experiments with and without dialysis of Propionibacterium freudenreichii were conducted. It was possible to keep the propionic acid concentration in the reactor at a low level to avoid complete growth inhibition. Improvements in biomass and propionic acid productivities were achieved when the dialysis system was used. The performance of the dialysis system was improved when a new pH control strategy evaluated in this study was used.
Authors:
J P da Costa; C Schrom; A Qeusada-Chanto; K W Böddeker; R Jonas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied biochemistry and biotechnology     Volume:  76     ISSN:  0273-2289     ISO Abbreviation:  Appl. Biochem. Biotechnol.     Publication Date:  1999 Feb 
Date Detail:
Created Date:  2004-08-12     Completed Date:  2005-02-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8208561     Medline TA:  Appl Biochem Biotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  99-105     Citation Subset:  -    
Affiliation:
Centro de Desenvolvimento Biotecnológico, Joinville-SC, Brazil.
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