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Continuous bio-catalytic conversion of sugar mixture to acetone–butanol–ethanol by immobilized Clostridium acetobutylicum DSM 792

Applied microbiology and biotechnology, 2012-03, Vol.93 (6), p.2309-2316 [Peer Reviewed Journal]

Springer-Verlag 2011 ;COPYRIGHT 2012 Springer ;Springer-Verlag 2012 ;ISSN: 0175-7598 ;EISSN: 1432-0614 ;DOI: 10.1007/s00253-011-3761-x ;PMID: 22159612

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Title:
Continuous bio-catalytic conversion of sugar mixture to acetone–butanol–ethanol by immobilized Clostridium acetobutylicum DSM 792
Author: Survase, Shrikant A. ; van Heiningen, Adriaan ; Granström, Tom
Subjects: Acetone ; Acetone - metabolism ; Adsorption ; Alcohol ; Alcohol, Denatured ; Biomass ; Biomedical and Life Sciences ; Bioreactors - microbiology ; Biotechnological Products and Process Engineering ; Biotechnology ; Biotransformation ; Butanols - metabolism ; Cells, Immobilized - metabolism ; Chemical engineering ; Clostridium acetobutylicum ; Clostridium acetobutylicum - metabolism ; Dextrose ; Ethanol ; Ethanol - metabolism ; Experiments ; Fermentation ; Galactose ; Glucose ; Industrial Microbiology ; Life Sciences ; Lignocellulose ; Membrane reactors ; Microbial Genetics and Genomics ; Microbiology ; Monosaccharides - metabolism ; Potassium ; Productivity ; Raw materials ; Sodium ; Solvents ; Studies ; Wood products
Is Part Of: Applied microbiology and biotechnology, 2012-03, Vol.93 (6), p.2309-2316
Description: Continuous production of acetone, n -butanol, and ethanol (ABE) was carried out using immobilized cells of Clostridium acetobutylicum DSM 792 using glucose and sugar mixture as a substrate. Among various lignocellulosic materials screened as a support matrix, coconut fibers and wood pulp fibers were found to be promising in batch experiments. With a motive of promoting wood-based bio-refinery concept, wood pulp was used as a cell holding material. Glucose and sugar mixture (glucose, mannose, galactose, arabinose, and xylose) comparable to lignocellulose hydrolysate was used as a substrate for continuous production of ABE. We report the best solvent productivity among wild-type strains using column reactor. The maximum total solvent concentration of 14.32 g L −1 was obtained at a dilution rate of 0.22 h −1 with glucose as a substrate compared to 12.64 g L −1 at 0.5 h −1 dilution rate with sugar mixture. The maximum solvent productivity (13.66 g L −1 h −1 ) was obtained at a dilution rate of 1.9 h −1 with glucose as a substrate whereas solvent productivity (12.14 g L −1 h −1 ) was obtained at a dilution rate of 1.5 h −1 with sugar mixture. The immobilized column reactor with wood pulp can become an efficient technology to be integrated with existing pulp mills to convert them into wood-based bio-refineries.
Publisher: Berlin/Heidelberg: Springer-Verlag
Language: English
Identifier: ISSN: 0175-7598
EISSN: 1432-0614
DOI: 10.1007/s00253-011-3761-x
PMID: 22159612
Source: MEDLINE
Alma/SFX Local Collection
ProQuest Central

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Continuous bio-catalytic conversion of sugar mixture to acetone–butanol–ethanol by immobilized Clostridium acetobutylicum DSM 792

Springer-Verlag 2011 ;COPYRIGHT 2012 Springer ;Springer-Verlag 2012 ;ISSN: 0175-7598 ;EISSN: 1432-0614 ;DOI: 10.1007/s00253-011-3761-x ;PMID: 22159612

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