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Chemical and physical characterization and acid hydrolysis of a mixture of Jatropha curcas shells and husks
University of Borås, Faculty of Textiles, Engineering and Business.
University of Borås, Faculty of Textiles, Engineering and Business.
University of Borås, Faculty of Textiles, Engineering and Business. (Biotechnology)
University of Borås, Faculty of Textiles, Engineering and Business.
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2015 (English)In: Cellulose Chemistry and Technology, ISSN 0576-9787, Vol. 49, no 9-10, 737-744 p.Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

Jatropha curcas L. is a tropical plant with considerable potential for producing biodiesel and other products of high economic and social interest. During the biodiesel production process from J. curcas different residues, such as shells and husks are generated. In this work, the physical characterization of J. curcas fruits was performed, and the chemical composition of a mixture of shells and husks was determined. The physical characterization revealed that shells and husks account, respectively, for 25.0 and 27.8% of the fruit weight. The compositional analyses of the material showed a rather high content of glucans (32.8% w/w) and xylans (16.4% w/w), which indicates the potential of J. curcas shells and husks for production of ethanol, xylitol and other glucose- and xylose-derived products. Acid hydrolysis was applied to a mixture of shells and husks under different sulphuric acid concentrations (from 0.5 to 4.5%), temperatures (170 – 220ºC) and time (10 – 20 min), and the hydrolytic conversion of xylan was evaluated. A zone of experimental conditions giving maximal xylan conversion was identified at around 4% H2SO4, 180ºC and reaction time below 10 min.

Place, publisher, year, edition, pages
Editura Academiei Romane,Publishing House of the Romanian Academy , 2015. Vol. 49, no 9-10, 737-744 p.
Keyword [en]
Resource Recovery
National Category
Industrial Biotechnology
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-2028Local ID: 2320/14619OAI: oai:DiVA.org:hb-2028DiVA: diva2:870109
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-03-20Bibliographically approved

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Karimi, KeikhosroTaherzadeh, Mohammad J
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