Production of hydrogen sulfide by a moderately thermophilic iron- oxidizing bacterium strain TI-1

Keiichi Oda, Keiko Matsumoto, Masaki Takai, Akira Wakasa, Kazuo Kamimura, Tsuyoshi Sugio

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A moderately thermophilic iron-oxidizing bacterium strain TI-1 has been shown to have a unique enzyme system that produces hydrogen sulfide (H2S) extracellularly under acidic conditions. The optimal culture conditions for H2S production were determined to apply the bacterium to the treatment of acidic wastewater containing heavy metals. The production of H2S by the cells was dependent on L-glutamic acid, ferrous sulfate and elemental sulfur in the medium. The optimal culture medium for H2S production contained 0.3% L-glutamic acid, 1.7% ferrous sulfate, and 1.0% elemental sulfur and the optimal pH and temperature were 4.0 and 55°C, respectively. Under the optimal culture conditions, strain TI-1 produced H2S continuously at a rate of 0.26 μmol/ml/d for 14 d.

Original languageEnglish
Pages (from-to)372-374
Number of pages3
JournalJournal of Fermentation and Bioengineering
Volume84
Issue number4
DOIs
Publication statusPublished - 1997

Fingerprint

ferrous sulfate
Hydrogen Sulfide
Hydrogen sulfide
Sulfur
Glutamic Acid
Bacteria
Iron
Waste Water
Heavy Metals
Culture Media
Acids
Heavy metals
Temperature
Wastewater
Enzymes

Keywords

  • Hydrogen sulfide
  • Iron-oxidizing bacterium
  • Moderate thermophile

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Production of hydrogen sulfide by a moderately thermophilic iron- oxidizing bacterium strain TI-1. / Oda, Keiichi; Matsumoto, Keiko; Takai, Masaki; Wakasa, Akira; Kamimura, Kazuo; Sugio, Tsuyoshi.

In: Journal of Fermentation and Bioengineering, Vol. 84, No. 4, 1997, p. 372-374.

Research output: Contribution to journalArticle

Oda, Keiichi ; Matsumoto, Keiko ; Takai, Masaki ; Wakasa, Akira ; Kamimura, Kazuo ; Sugio, Tsuyoshi. / Production of hydrogen sulfide by a moderately thermophilic iron- oxidizing bacterium strain TI-1. In: Journal of Fermentation and Bioengineering. 1997 ; Vol. 84, No. 4. pp. 372-374.
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