Biotechnology Letters

, Volume 28, Issue 11, pp 831–835

Improvement of Biohydrogen Production Under Decreased Partial Pressure of H2 by Enterobacter cloacae

Original Paper

DOI: 10.1007/s10529-006-9008-8

Cite this article as:
Mandal, B., Nath, K. & Das, D. Biotechnol Lett (2006) 28: 831. doi:10.1007/s10529-006-9008-8


When the partial pressure of H2 was decreased by lowering the total pressure in the headspace of the reactor in a batch fermentation process from 760 mm Hg to 380 mm Hg containing Enterobacter cloacae, the molar yield of H2 increased from 1.9 mol to 3.9 mol H2/mol glucose. The maximum production rate was 0.017 mmol H2/h l at 380 mm Hg. The lag period as well as total batch time of H2 production decreased using a decreased partial pressure.


Biohydrogen Enterobacter cloacae fermentation H2 yield partial pressure 

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  1. 1.FermentationTechnology Laboratory, Department of BiotechnologyIndian Institute of TechnologyKharagpurIndia
  2. 2.Department of Chemical EngineeringG H Patel College of Engg & TechnologyVallabh VidyanagarIndia

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