Efficient Extraction of Xylan from Delignified Corn Stover Using Dimethyl Sulfoxide

Steve Decker, William Michener, Stuart Black, John Rowley

Research output: Contribution to journalArticlepeer-review


Xylan can be extracted from biomass using either alkali (KOH or NaOH) or dimethyl sulfoxide (DMSO); however, DMSO extraction is the only method that produces a water-soluble xylan. In this study, DMSO extraction of corn stover was studied at different temperatures with the objective of finding a faster, more efficient extraction method. The temperature and time of extraction were compared followed by a basic structural analysis to ensure that no significant structural changes occurred under different temperatures. The resulting data showed that heating to 70 degrees C during extraction can give a yield comparable to room temperature extraction while reducing the extraction time by ~90 %. This method of heating was shown to be the most efficient method currently available and was shown to retain the important structural characteristics of xylan extracted with DMSO at room temperature.
Original languageAmerican English
Pages (from-to)433-438
Number of pages6
Journal3 Biotech
Issue number5
StatePublished - 2013

NREL Publication Number

  • NREL/JA-2700-68264


  • acetylation
  • biomass
  • hemicellulose
  • plant cell wall
  • xylan


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