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Ethanol production from alkali-pretreated oil palm empty fruit bunch by simultaneous saccharification and fermentation with mucor indicus
University of Borås, Faculty of Textiles, Engineering and Business. (Biotechnology)
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2016 (English)In: International Journal of Green Energy, ISSN 1543-5075, E-ISSN 1543-5083, Vol. 13, no 6, 566-572 p.Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

Oil palm empty fruit bunch (OPEFB) is a potential raw material for production of lignocellulosic bioethanol. The OPEFB was pretreated with 8% sodium hydroxide solution at 100 °C for 10 to 90 min. Enzymatic digestion was carried out using cellulase and β-glucosidase at 45 °C for 24 h. It was then inoculated with Mucor indicus spores suspension and fermented under anaerobic conditions at 37 °C for 96 h. Sodium hydroxide pretreatment effectively removed 51-57% of lignin in the OPEFB and also its hemicellulose (40-84%). The highest glucan digestibility (0.75 g/g theoretical glucose) was achieved in 40 min NaOH pretreatment. Fermentation by M. indicus resulted in 68.4% of the theoretical ethanol yield, while glycerol (16.2-83.2 mg/g), succinic acid (0-0.4 mg/g), and acetic acid (0-0.9 mg/g) were its by-products. According to these results, the 11.75 million tons of dry OPEFB in Indonesia can be converted to 1.5 billion litres of ethanol per year.

Place, publisher, year, edition, pages
Taylor and Francis , 2016. Vol. 13, no 6, 566-572 p.
Keyword [en]
Ethanol, Mucor indicus, oil palm empty fruit bunch (OPEFB), pretreatment, sodium hydroxide, simultaneous saccharification and fermentation
National Category
Industrial Biotechnology
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-2029DOI: 10.1080/15435075.2014.978004Local ID: 2320/14620OAI: oai:DiVA.org:hb-2029DiVA: diva2:870110
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-01-16Bibliographically 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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