Production of ultrafine calcite particles by coccolithophorid algae grown in a biosolar reactor supplied with sunlight

Hiroyuki Takano, Hiroyuki Furu-une, J. Grant Burgess, Eichi Manabe, Morio Hirano, Megumi Okazaki, Tadashi Matsunaga

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Ultrafine calcite particle production by coccolithophorid algae using a biosolar reactor system was carried out. Solar light was collected by Fresnel lenses and transmitted to a bundle of light diffusing optical fibers (LDOFs) that distributed light through the algal culture. The irradiance spectrum of light emitted from the LDOF surface was the same as that of solar light. Emiliania huxleyi was cultured for 8 d, and 43 mg/L of calcite were produced. These results demonstrate the potential of the biosolar reactor system for CO2 fixation, and ultrafine calcite particle production using coccolithophorid algae and sunlight.

Original languageEnglish
Pages (from-to)159-167
Number of pages9
JournalApplied Biochemistry and Biotechnology
Issue number1
Publication statusPublished - 1993 Sep
Externally publishedYes



  • biosolar-reactor
  • calcite
  • Coccolith
  • solar collector
  • ultrafine particle

ASJC Scopus subject areas

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

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