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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/18298
Title: Metabolism analysis and on-line physiological state diagnosis of acetone-butanol fermentation
Authors: Somchai Chauvatcharin
Chairat Siripatana
Tatsuji Seki
Mutsumi Takagi
Toshiomi Yoshida
Osaka University
Prince of Songkla University
Mahidol University
Keywords: Biochemistry, Genetics and Molecular Biology;Immunology and Microbiology
Issue Date: 20-Jun-1998
Citation: Biotechnology and Bioengineering. Vol.58, No.6 (1998), 561-571
Abstract: Fermentation equations for acetone-butanol (AB) were applied in a metabolic analysis of the reaction network under various conditions; that is, at different pHs and a high NADH2 turnover rate using methyl viologen, in a Clostridium acetobutylicum culture. The results disclosed variations in the pattern of rate changes that reflected changes in the physiological state. A linear relationship was found to exist between NADH2 generation and butanol production rate. By coupling an automated measurement system with the fermentation model, online estimation of the culture state was accomplished. Based on the AB fermentation model, new parameters were defined for on-line diagnosis of the physiological state and determination of the best timing for amplifying NADH2 generation by the addition of methyl viologen to obtain a high level of butanol productivity. A potential means of achieving optimal control for a high level of solvent production, involving the correlation of certain rates, is proposed.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0032551277&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/18298
ISSN: 00063592
Appears in Collections:Scopus 1991-2000

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