Simultaneous saccharification and fermentation of pretreated switch grass with kluyveromyces marxianus imb strains

Brian A. Faga, Mark R. Wilkins, Danielle D. Bellmer, Raymond L. Huhnke, Ibrahim M. Banat

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Switchgrass was pretreated by hydrothermolysis at 200 °C for 10 min. The resulting solids had a glucan content of 54%. Pretreated switchgrass containing 4 g of glucan was used in a simultaneous saccharification and fermentation (SSF) process with five thermotolerant strains of K. marxianus yeast and 60 FPU of a commercial cellulase enzyme mixture. The SSFs were performed for 7 d at 45 °C and buffered at pH 5.5. IMB 3 provided the best ethanol production results. After 72 and 96 h, 1MB 3 produced 71% and 82% of theoretical maximum ethanol from glucose, respectively. None of the other strains achieved greater than 80% theoretical conversion.

Original languageEnglish
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
Pages894-902
Number of pages9
Publication statusPublished (in print/issue) - 2 Jul 2008
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008 - Providence, RI, United States
Duration: 29 Jun 20082 Jul 2008

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
Volume2

Conference

ConferenceAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008
Country/TerritoryUnited States
CityProvidence, RI
Period29/06/082/07/08

Keywords

  • Ethanol
  • Pretreatment
  • Switchgrass
  • Thermotolerant yeast

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