Strain comparison and medium preparation for the acetone-butanol-ethanol (ABE) fermentation process using a substrate of potato

Several strains of solvent-producing clostridia were investigated for their ability to produce solvents from unsupplemented potato and from potato that had been pre-hydrolysed with amylolytic enzymes. Most of the strains were strongly solventogenic and prior treatment with the enzymes gave no improv...

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Bibliographic Details
Published in:Bioresource technology 1998-12, Vol.66 (3), p.263-265
Main Authors: Gutierrez, N.A., Maddox, I.S., Schuster, K.C., Swoboda, H., Gapes, J.R.
Format: Article
Language:English
Subjects:
ABE fermentation
Agronomy. Soil science and plant productions
amylases
Bioconversions. Hemisynthesis
Biological and medical sciences
Biotechnology
clostridia
Clostridium acetobutylicum
Clostridium beijerinckii
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Methods. Procedures. Technologies
potato
Use of agricultural and forest wastes. Biomass use, bioconversion
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Summary:Several strains of solvent-producing clostridia were investigated for their ability to produce solvents from unsupplemented potato and from potato that had been pre-hydrolysed with amylolytic enzymes. Most of the strains were strongly solventogenic and prior treatment with the enzymes gave no improvement in this property. C. acetobutylicum DSM 1731 showed a reactor productivity of 0·24 g/l/h on unhydrolysed potato, and was the most productive strain tested. In contrast, C. acetobutylicum ATCC 824 was only weakly solventogenic unless the potato was pre-hydrolysed using amylolytic enzymes.
ISSN:0960-8524
1873-2976
DOI:10.1016/S0960-8524(98)00051-0