Biotechnology Letters

, Volume 7, Issue 2, pp 135–140 | Cite as

Improvements in ethanol concentration and fermentor ethanol productivity in yeast fermentations using whole soy flour in batch, and continuous recycle systems

  • Dominick Damiano
  • Shaw S. Wang


Ethanol concentrations and fermentor productivities were increased 20.2 and 15.5% at 90 and 95% recycle, respectively, when whole soy flour was added to the feed (2 g/ℓ at 90% recycle, and 1 g/ℓ at 95% recycle) of a continuous yeast fermentation system with recycle of cells and soy flour (soy flour concentrations were 2% at steady state in the fermentor) by UF membranes as compared to controls. The improvements were primarily due to increases in cell concentrations. Similar results were obtained for batch cultures.


Fermentation Steady State Organic Chemistry Bioorganic Chemistry Cell Concentration 
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Copyright information

© Science and Technology Letters 1985

Authors and Affiliations

  • Dominick Damiano
    • 1
  • Shaw S. Wang
    • 1
  1. 1.Department of Chemical and Biochemical Engineering RutgersThe State University of New JerseyPiscatawayUSA

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