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Acetone/water oxida...
Acetone/water oxidation of corn stover for the production of bioethanol and prebiotic oligosaccharides
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- Katsimpouras, Constantinos (author)
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens
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- Dedes, Grigorios (author)
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens
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- Bistis, Perrakis (author)
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens
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- Kekos, Dimitrios (author)
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens
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- Kalogiannis, Konstantinos G. (author)
- Chemical Process and Energy Resources Institute (CPERI)
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- Topakas, Evangelos (author)
- Luleå tekniska universitet,Kemiteknik,Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens
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(creator_code:org_t)
- Elsevier, 2018
- 2018
- English.
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In: Bioresource Technology. - : Elsevier. - 0960-8524 .- 1873-2976. ; 270, s. 208-215
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Ethanol production at high-gravity promise to achieve concentrations over the threshold for an economical distillation process and concurrently reduce water consumption. However, a persisting limitation is the poor mass transfer conditions resulting in low ethanol yields and concentrations. Hereby, the combination of an acetone/water oxidation pretreatment process (AWO) with a liquefaction/saccharification step, using a free-fall mixer, before simultaneous saccharification and fermentation (SSF) can realize ethanol concentrations of up to ca. 74 g/L at a solids content of 20 wt.%. The free-fall mixer achieved a biomass slurry’s viscosity reduction by 87 % after only 2 h of enzymatic saccharification, indicating the efficiency of the mixing system. Furthermore, the direct enzymatic treatment of AWO pretreated corn stover (CS) by a GH11 recombinant xylanase, led to the production of xylooligosaccharides (XOS) with prebiotic potential and the removal of insoluble fibers of hemicellulose improved the glucose release of AWOCS by 22 %.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)
Keyword
- Biokemisk processteknik
- Biochemical Process Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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