Effect on the Concentration of Glucose and Sucrose on the Hydrogen Production using by the Facultative Anaerobic Hydrogen Producing Bacterium Rhodopseudomonas sp. MeL 6-2

통성혐기성 수소생산균주 Rhodopseudomonas sp. MeL 6-2를 이용한 수소생산효율에 미치는 포도당 및 자당 농도의 영향

  • Lee, Eun-Young (Department of Environmental Engineering, University of Suwon)
  • 이은영 (수원대학교 환경공학과)
  • Received : 2009.04.04
  • Accepted : 2009.05.15
  • Published : 2009.06.28


Hydrogen producing bacterium, strain MeL 6-2 was isolated from the sludge of the factory areas in Anyang through the acclimation in basal salt medium (BSM) supplemented with 10 g/L of sucrose. Isolated strain MeL 6-2 was a facultative anaerobe which could grow in both aerobic and anaerobic environments. An aerobically grown pure culture isolated from enriched culture was analyzed by 16S rDNA sequencing and identified as Rhodopseudomonas sp. MeL 6-2. Effects of the concentrations of glucose and sucrose on the hydrogen production rate and the hydrogen production yield were investigated. When glucose in the range of 1~12 g/L was supplemented to the BSM, strain MeL 6-2 could grow without lag phase. An increased glucose concentration increased the specific hydrogen production rate linearly to $4.2\;mmol-H_2{\cdot}L^{-1}{\cdot}h^{-1}$ at 10 g/L, and $60\;mmol-H_2{\cdot}mg-DCW^{-1}{\cdot}h^{-1}$, but decreased slightly as the concentration increased to 12 g/L. The hydrogen production yield was maintained over a range from 2.6 to $3.1\;mol-H_2{\cdot}mol-glucose^{-1}$. When sucrose in the range of 1~12 g/L was supplemented to the BSM, strain MeL 6-2 could grow after ten hours. An increased sucrose concentration increased the specific hydrogen production rate and the hydrogen production yield to $163\;mmol-H_2{\cdot}mg-DCW^{-1}{\cdot}h^{-1}$ and to $4.5\;mol-H_2{\cdot}mol-sucrose^{-1}$, respectively.


Bio-hydrogen;facultative anaerobes;glucose;sucrose


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