Continuous hydrogen production from glucose by using extreme thermophilic anaerobic microflora

J Biosci Bioeng. 2009 Jan;107(1):64-6. doi: 10.1016/j.jbiosc.2008.09.010.

Abstract

Continuous hydrogen production from glucose at 75 degrees C was examined at HRTs of 0.67, 1, 2, and 3 d by using extreme thermophilic microflora, which consisted of several subspecies of Caldanaerobacter subterraneus. The maximum hydrogen yield of 3.32 mol-H2/mol-glucose degraded was obtained at the highest HRT, 3 d. Both the maximum volumetric and specific rates of hydrogen production (1.22 L-H2/L/d and 4.15 L-H2/g-VSS/d, respectively) were obtained at the lowest HRT, 0.67 d. A 16S rDNA analysis showed that the community structure of the microflora did not change at any of the HRTs.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacteria / metabolism*
  • Biodegradation, Environmental
  • Bioreactors
  • Biotechnology / methods*
  • Cell Culture Techniques
  • Fermentation
  • Glucose / chemistry
  • Glucose / metabolism*
  • Hydrogen / chemistry*
  • RNA, Ribosomal, 16S / chemistry
  • Temperature
  • Waste Disposal, Fluid

Substances

  • RNA, Ribosomal, 16S
  • Hydrogen
  • Glucose