Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus RS-1, using magnetic separation

Atsushi Arakaki, Haruko Takeyama, Tsuyoshi Tanaka, Tadashi Matsunaga*

*この研究の対応する著者

研究成果: Article査読

30 被引用数 (Scopus)

抄録

Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus strain RS-1, was investigated. D. magneticus precipitated >95% of cadmium at an initial concentration of 1.3 ppm in the growth medium. Electron microscopic analysis revealed that D. magneticus formed electron-dense particles on its surface when cultivated in the presence of cadmium ions (Cd2+). Sulfide was also found in the precipitate, and the composition ratio of sulfide/cadmium was 0.7. Sixty percent of viable RS-1 cells was recovered by a simple magnetic separation revealing the removal of 58% cadmium from the culture medium.

本文言語English
ページ(範囲)833-840
ページ数8
ジャーナルApplied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology
98-100
DOI
出版ステータスPublished - 2002 5 11
外部発表はい

ASJC Scopus subject areas

  • バイオテクノロジー
  • バイオエンジニアリング
  • 生化学
  • 応用微生物学とバイオテクノロジー
  • 分子生物学

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