CO2 removal by high-density culture of a marine cyanobacterium synechococcus sp. using an improved photobioreactor employing light-diffusing optical fibers

Hiroyuki Takano, Haruko Takeyama, Noriyuki Nakamura, Koji Sode, J. Grant Burgess, Eichi Manabe, Morio Hirano, Tadashi Matsunaga

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A light diffusing optical fiber (LDOF) photobioreactor with an improved gas input system has been used for the high-density culture of a marine cyanobacterium Synechococcus sp. Optimum conditions for CO2 removal and biomass production were investigated. Maximum CO2 removal of 4.44 g/L/d was achieved using an initial cell concentration of 6.8 g/L. The biomass yield was 0.97 g/L for a 12-culture time. Continuous cultures, in which medium was filtered using a ceramic membrane module, showed enhanced growth, with a final cell concentration of 11.2 g/L. These results demonstrate the potential of LDOF photobioreactor units for CO2 removal and biomass production using marine cyanobacteria.

Original languageEnglish
Pages (from-to)449-458
Number of pages10
JournalApplied Biochemistry and Biotechnology
Issue number1
Publication statusPublished - 1992 Mar 1



  • CO2 removal
  • Photobioreactor
  • Synechococcus
  • marine cyanobacterium
  • optical fiber

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology

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