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Bioethanol production from sweet sorghum bagasse by Mucor hiemalis
University of Borås, School of Engineering. (Swedish Centre for Resource Recovery)
University of Borås, School of Engineering. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0003-4887-2433
2011 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 34, no 1, 1219-1225 p.Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

The present work deals with production of ethanol from sweet sorghum bagasse by a zygomycetes fungus Mucor hiemalis. The bagasse was treated with phosphoric acid and sodium hydroxide, with or without ultrasonication, prior to enzymatic hydrolysis by commercial cellulase and β-glucosidase enzymes. The phosphoric acid pretreatment was performed at 50 °C for 30 min, while the alkali treatment performed with 12% NaOH at 0 °C for 3 h. The pretreatments resulted in improving the subsequent enzymatic hydrolysis to 79–92% of the theoretical yield. The best hydrolysis performance was obtained after pretreatment by NaOH assisted with ultrasonication. The fungus showed promising results in fermentation of the hydrolyzates. In the best case, the hydrolyzate of NaOH-ultrasound pretreated bagasse followed by 24 h fermentation resulted in about 81% of the corresponding theoretical ethanol yield. Furthermore, the highest volumetric ethanol productivity was observed in the hydrolyzates of NaOH pretreated bagasse, especially after ultrasonication in pretreatment stage.

Place, publisher, year, edition, pages
Elsevier , 2011. Vol. 34, no 1, 1219-1225 p.
Keyword [en]
Biotechnology
National Category
Industrial Biotechnology Chemical Engineering
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-3176DOI: 10.1016/j.indcrop.2011.04.018Local ID: 2320/9375OAI: oai:DiVA.org:hb-3176DiVA: diva2:871273
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2016-07-15Bibliographically approved

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Karimi, KeikhosroTaherzadeh, Mohammad J.
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CiteExportLink to record
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Citation style
  • apa
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