Biotechnology Techniques

, Volume 8, Issue 2, pp 99–104 | Cite as

Simultaneous saccharification and fermentation of pretreated biomass: Improving mass balance closure

  • C. I. Ehrman
  • M. E. Himmel


The successful implementation of simultaneous saccharification and fermentation (SSF) technology for biomass conversion to ethanol requires competent analysis of complex biomass process streams, often obtained at extremes of pH. In this study, optimal conditions for handling biomass samples recovered from acid and alkaline pretreatments prior to traditional compositional analysis were developed. Methods for processing slurries from SSF were also determined. In both cases, a mixed wastepaper feedstock was used to test improved handling procedures and to document recommended performance.


Biomass Fermentation Compositional Analysis Process Stream Balance Closure 
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Copyright information

© Science and Technology Letters 1994

Authors and Affiliations

  • C. I. Ehrman
    • 1
  • M. E. Himmel
    • 1
  1. 1.Applied Biological Sciences Branch Alternative Fuels DivisionNational Renewable Energy LaboratoryGoldenUSA

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