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

Atsushi Arakaki; Haruko Takeyama; Tsuyoshi Tanaka; Tadashi Matsunaga

doi:10.1385/ABAB:98-100:1-9:833

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

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	833-840
Number of pages	8
Journal	Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology
Volume	98-100
DOIs	https://doi.org/10.1385/ABAB:98-100:1-9:833
Publication status	Published - 2002 May 11
Externally published	Yes

Keywords

Bioremediation
Cadmium, magnetic separation
Desulfovibrio magneticus
Sulfate-reducing magnetotactic bacterium

ASJC Scopus subject areas

Biotechnology
Bioengineering
Biochemistry
Applied Microbiology and Biotechnology
Molecular Biology

Access to Document

10.1385/ABAB:98-100:1-9:833

Cite this

Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus RS-1, using magnetic separation. / Arakaki, Atsushi; Takeyama, Haruko; Tanaka, Tsuyoshi et al.
In: Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology, Vol. 98-100, 11.05.2002, p. 833-840.

Research output: Contribution to journal › Article › peer-review

@article{f4fcfef971df4c3fa5fe586072b52fab,

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

abstract = "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.",

keywords = "Bioremediation, Cadmium, magnetic separation, Desulfovibrio magneticus, Sulfate-reducing magnetotactic bacterium",

author = "Atsushi Arakaki and Haruko Takeyama and Tsuyoshi Tanaka and Tadashi Matsunaga",

year = "2002",

month = may,

day = "11",

doi = "10.1385/ABAB:98-100:1-9:833",

language = "English",

volume = "98-100",

pages = "833--840",

journal = "Applied Biochemistry and Biotechnology",

issn = "0273-2289",

publisher = "Humana Press",

}

TY - JOUR

T1 - Cadmium recovery by a sulfate-reducing magnetotactic bacterium, Desulfovibrio magneticus RS-1, using magnetic separation

AU - Arakaki, Atsushi

AU - Takeyama, Haruko

AU - Tanaka, Tsuyoshi

AU - Matsunaga, Tadashi

PY - 2002/5/11

Y1 - 2002/5/11

N2 - 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.

AB - 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.

KW - Bioremediation

KW - Cadmium, magnetic separation

KW - Desulfovibrio magneticus

KW - Sulfate-reducing magnetotactic bacterium

UR - http://www.scopus.com/inward/record.url?scp=0036233740&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036233740&partnerID=8YFLogxK

U2 - 10.1385/ABAB:98-100:1-9:833

DO - 10.1385/ABAB:98-100:1-9:833

M3 - Article

C2 - 12018305

AN - SCOPUS:0036233740

SN - 0273-2289

VL - 98-100

SP - 833

EP - 840

JO - Applied Biochemistry and Biotechnology

JF - Applied Biochemistry and Biotechnology

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this