Increased coccolith production by Emiliania huxleyi cultures enriched with dissolved inorganic carbon

H. Takano, R. Takei, E. Manabe, J. G. Burgess, M. Hirano, Tadashi Matsunaga

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Cells of Emiliania huxleyi grown on Eppley's medium enriched with dissolved inorganic carbon (DIC) developed multiple layers of coccoliths. The maximum diameter of cells grown in the presence of 13.2 mM DIC was 12.3 μm, whereas that of cells grown in the presence of 1.5 mM DIC was 8.0 μm. Although enrichment of Eppley's medium with DIC increased both coccolith production and cell growth, coccolith production was enhanced to a greater extent than cell growth. The enrichment of Eppley's medium with DIC was used to enhance production of coccolith particles by E. huxleyi. Repeated-batch culture, in which DIC, Ca2+, nitrate and phosphate concentrations in the medium were maintained by replacing the culture medium, was carried out in a closed photobioreactor. During repeated-batch culture, a maximum coccolith yield of 560 mg/l for 2 days and a maximum biomass yield of 810 mg/l for 2 days were achieved. Enrichment and maintenance of DIC is therefore an efficient method for the production of large quantities of coccoliths.

本文言語English
ページ(範囲)460-465
ページ数6
ジャーナルApplied Microbiology and Biotechnology
43
3
DOI
出版ステータスPublished - 1995
外部発表はい

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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