Document Detail


Continuous lactose fermentation by Clostridium acetobutylicum--assessment of acidogenesis kinetics.
MedLine Citation:
PMID:  20889336     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
An assessment of the growth kinetics of acidogenic cells of Clostridium acetobutylicum DSM 792 is reported in the paper. Tests were carried out in a continuous stirred tank reactor under controlled conditions adopting a complex medium supplemented with lactose as carbon source to mimic cheese whey. The effects of acids (acetic and butyric), solvents (acetone, ethanol and butanol) and pH on the growth rate of acidogenic cells were assessed. The conversion process was characterized under steady-state conditions in terms of concentration of lactose, cells, acids, total organic carbon and pH. The growth kinetics was expressed by means of a multiple product inhibition and interacting model including a novel formulation to account for the role of pH. The model has the potential to predict microorganism growth rate under a broad interval of operating conditions, even those typical of solvents production.
Authors:
Fabio Napoli; Giuseppe Olivieri; Maria Elena Russo; Antonio Marzocchella; Piero Salatino
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Publication Detail:
Type:  Journal Article     Date:  2010-09-07
Journal Detail:
Title:  Bioresource technology     Volume:  102     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1608-14     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Chemical Engineering Department, Università degli Studi di Napoli Federico II, P.le V. Tecchio n. 80, 80125 Napoli, Italy.
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