Document Detail

Growth monitoring of Fibrobacter succinogenes by pressure measurement.
MedLine Citation:
PMID:  18488253     Owner:  NLM     Status:  MEDLINE    
In life support systems, such as the MELiSSA (Micro-Ecological Life Support Alternative) project, developed by the European Space Agency, the aim is to understand and assemble artificial ecosystems for ensuring human subsistence in space. Fibrobacter succinogenes, an anaerobic bacterium, was used for the degradation of vegetable wastes produced in higher plants chambers, but the process does not allow the monitoring of biomass concentration and degradation rates. This study proposes a growth and a degradation monitoring technique using pressure measurements. First, volatile fatty acids (VFA) production was compared with biomass growth and with CO(2) production. The experiments were carried out in batch and fed-batch processes on glucose and on vegetables. The results have shown that a link could be established between VFA production, degradation rate and gas pressure measurements. Thus, the pressure could be used both as a relevant variable for online evaluation of biomass growth and of degradation of complex vegetable wastes.
G Christophe; E Guiavarch; C Creuly; C-G Dussap
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-05-17
Journal Detail:
Title:  Bioprocess and biosystems engineering     Volume:  32     ISSN:  1615-7605     ISO Abbreviation:  Bioprocess Biosyst Eng     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2008-12-19     Completed Date:  2009-04-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088505     Medline TA:  Bioprocess Biosyst Eng     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  123-8     Citation Subset:  IM    
Laboratoire de Génie Chimique et Biochimique, Polytech' Clermont-Ferrand, Université Blaise Pascal, Aubière Cedex, France.
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MeSH Terms
Biotechnology / methods*
Brassica / metabolism
Carbon Dioxide / chemistry
Equipment Design
Fibrobacter / metabolism*
Glucose / chemistry
Industrial Microbiology / methods*
Soybeans / metabolism
Time Factors
Triticum / metabolism
Reg. No./Substance:
0/Gases; 124-38-9/Carbon Dioxide; 50-99-7/Glucose

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