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Single-step microwave-assisted hot water extraction of hemicelluloses from selected lignocellulosic materials: A biorefinery approach
RISE - Research Institutes of Sweden, Bioeconomy, PFI.
RISE - Research Institutes of Sweden, Bioeconomy, PFI.
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2017 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 241, 669-680 p.Article in journal (Refereed) Published
Abstract [en]

The viability of single-step microwave-induced pressurized hot water conditions for co-production of xylan-based biopolymers and bioethanol from aspenwood sawdust and sugarcane trash was investigated. Extraction of hemicelluloses was conducted using microwave-assisted pressurized hot water system. The effects of temperature and time on extraction yield and enzymatic digestibility of resulting solids were determined. Temperatures between 170–200 °C for aspenwood and 165–195 °C for sugarcane trash; retention times between 8–22 min for both feedstocks, were selected for optimization purpose. Maximum xylan extraction yields of 66 and 50%, and highest cellulose digestibilities of 78 and 74%, were attained for aspenwood and sugarcane trash respectively. Monomeric xylose yields for both feedstocks were below 7%, showing that the xylan extracts were predominantly in non-monomeric form. Thus, single-step microwave-assisted hot water method is viable biorefinery approach to extract xylan from lignocelluloses while rendering the solid residues sufficiently digestible for ethanol production.

Place, publisher, year, edition, pages
2017. Vol. 241, 669-680 p.
Keyword [en]
hemicellulose, lignocellulose, biorefinery, Aspenwood, sugarcane trash
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:ri:diva-29970DOI: 10.1016/j.biortech.2017.05.159Scopus ID: 2-s2.0-85020459839OAI: oai:DiVA.org:ri-29970DiVA: diva2:1129187
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Available from: 2017-08-01 Created: 2017-08-01 Last updated: 2017-08-01Bibliographically approved

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CiteExportLink to record
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