Cell recycled culture of succinic acid-producing Anaerobiospirillum succiniciproducens using an internal membrane filtration system

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Cell recycled culture of succinic acid-producing Anaerobiospirillum succiniciproducens was anaerobically carried out using an internal membrane filter module in order to examine the physiological response of A. succiniciproducens to a high-cell-density environment. The optimal growth of A. succiniciproducens and its enhanced succinic acid productivity were observed under CO2-rich conditions, established by adding NaHCO3 and Na2CO3, in the cell recycled system. A. succiniciproducens grew up to 6.50 g-DCW/l, the highest cell concentration obtained so far, in cell recycled cultures. The cells did not change their morphology, which is known to be easily changed in unfavorable or stress environments. The maximum productivity of succinic acid was about 3.3 g/l/h, which is 3-3 times higher than those obtained in batch cultures. These results can serve as a guide for designing highly efficient cell recycled systems for succinic acid at a commercial level.
Publisher
KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY
Issue Date
2008-07
Language
English
Article Type
Article
Keywords

MANNHEIMIA-SUCCINICIPRODUCENS; PHOSPHOENOLPYRUVATE CARBOXYKINASE; ETHANOL-PRODUCTION; BOVINE RUMEN; BIOREACTOR; FERMENTATION; BACTERIUM; WHEY

Citation

JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, v.18, no.7, pp.1252 - 1256

ISSN
1017-7825
URI
http://hdl.handle.net/10203/22626
Appears in Collection
CBE-Journal Papers(저널논문)
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