Document Detail

Continuous production of succinic Acid using an external membrane cell recycle system.
MedLine Citation:
PMID:  19996689     Owner:  NLM     Status:  In-Data-Review    
Succinic acid was produced by continuous fermentation of Actinobacillus succinogenes sp. 130Z in an external membrane cell recycle reactor to improve viable cell concentration and productivity. Using this system, cell concentration increased to 16.4 g/l at the dilution rate 0.2 h-1, up to 3 times higher than that of batch culture, and the volumetric productivity of succinic acid increased up to 6.63 g/l/h at the dilution rate 0.5 h-1, 5 times higher than that of batch fermentation. However, in the continuous culture using a high dilution rate, operational problems including severe membrane fouling and contamination by lactic acid producer were observed. Another succinic acid producer, Mannheimia succiniciproducens MBEL55E, was also utilized in this system, and the cell concentration and productivity of succinic acid at the dilution rate of 0.3 h-1 were found to be above 3 and 2.3 times higher, respectively, compared with those obtained at the dilution rate of 0.1 h-1. These observations give a deep insight into the process design for a continuous succinic acid production by microorganisms.
Moon Il Kim; Nag Jong Kim; Longan Shang; Yong Keun Chang; Sang Yup Lee; Ho Nam Chang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of microbiology and biotechnology     Volume:  19     ISSN:  1017-7825     ISO Abbreviation:  J. Microbiol. Biotechnol.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-12-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9431852     Medline TA:  J Microbiol Biotechnol     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  1369-73     Citation Subset:  IM    
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701,Korea.
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