Applied Biochemistry and Biotechnology

, Volume 28, Issue 1, pp 719–729 | Cite as

Prediction of bed height in a self-aggregating yeast ethanol tower fermenter

  • Cheeshan S. Chen
  • Errcheng Chan
  • Cheng-Shung Gong
  • Li-Fu Chen
Session 4 Bioengineering Research


A packed bed region and a mixed region were observed in an ethanol tower fermenter packed with flocs of self-aggregating yeast. Sizes of yeast flocs were 2–3 mm and 0.2–0.3 mm in diameter in the packed bed region and the mixed region, respectively. Three major factors were found to affect the height of the packed bed region significantly. They were dilution rate, nutrient limitation, and hydrodynamic limitation. An empirical method was proposed using these three factors to predict the height of the packed bed region in the fermenter.

Index Entries

Ethanol fermentation yeast aggregates Saccharomyces uvarum tower fermenter packed bed. 


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Copyright information

© Humana Press Inc. 1991

Authors and Affiliations

  • Cheeshan S. Chen
    • 1
  • Errcheng Chan
    • 1
  • Cheng-Shung Gong
    • 1
  • Li-Fu Chen
    • 1
  1. 1.Laboratory of Advanced Bio- Processing Technology, Food Science DepartmentPurdue UniversityWest Lafayette

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