Floating cultivation of marine cyanobacteria using coal fly ash

Mitsufumi Matsumoto, Eri Yoshida, Haruko Takeyama, Tadashi Matsunaga

Research output: Contribution to journalArticle

5 Citations (Scopus)


The aim of this study was to develop improved methodologies for bulk culturing of biotechnologically useful marine cyanobacteria in the open ocean. We have investigated the viability of using coal fly ash (CFA) blocks as the support medium in a novel floating culture system for marine microalgae. The marine cyanobacterium Synechococcus sp. NKBG 040607 was found to adhere to floating CFA blocks in liquid culture medium. Maximum density of attached cells of 2.0 x 108 cells/cm2 was achieved using seawater. The marine cyanobacterium Synechococcus sp. NKBG 042902 weakly adhered to floating CFA blocks in BG-11 medium. Increasing the concentration of calcium ion in the culture medium enhanced adherence to CFA blocks.

Original languageEnglish
Pages (from-to)51-57
Number of pages7
JournalApplied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology
Publication statusPublished - 2000 Jun 24



  • Calcium ion
  • Coal fly ash
  • Floating culture
  • Immobilization
  • Marine cyanobacteria
  • Power plant

ASJC Scopus subject areas

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

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