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Fed-batch cultivati...
Fed-batch cultivation of Mucor indicus in dilute-acid lignocellulosic hydrolyzate for ethanol production
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- Karimi, Keikhosro (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Isfahan University of Technology
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- Brandberg, Tomas, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Edebo, Lars, 1934 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk bakteriologi,Institute of Laboratory Medicine, Dept of Clinical Bacteriology,University of Gothenburg
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Taherzadeh, Mohammad J. (author)
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- Taherzadeh Esfahani, Mohammad, 1965 (author)
- Högskolan i Borås,University of Borås
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2005
- 2005
- English.
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In: BIOTECHNOLOGY LETTERS. - : Springer Science and Business Media LLC. - 0141-5492 .- 1573-6776. ; 27:18
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Mucor indicus fermented dilute-acid lignocellulosic hydrolyzates to ethanol in fed-batch cultivation with complete hexose utilization and partial uptake of xylose. The fungus was tolerant to the inhibitors present in the hydrolyzates. It grew in media containing furfural (1 g/l), hydroxymethylfurfural (1 g/l), vanillin (1 g/l), or acetic acid (7 g/l), but did not germinate directly in the hydrolyzate. However, with fed-batch methodology, after initial growth of M. indicus in 500 ml enzymatic wheat hydrolyzate, lignocellulosic hydrolyzate was fermented with feeding rates 55 and 100 ml/h. The fungus consumed more than 46% of the initial xylose, while less than half of this xylose was excreted in the form of xylitol. The ethanol yield was 0.43 g/g total consumed sugar, and reached the maximum concentration of 19.6 g ethanol/l at the end of feeding phase. Filamentous growth, which is regarded as the main obstacle to large-scale cultivation of M. indicus, was avoided in the fed-batch experiments.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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