Electrochemical Regeneration of Fe(III) To Support Growth on Anaerobic Iron Respiration

Ohmura, Naoya; Matsumoto, Norio; Sasaki, Kazuhiro; Saiki, Hiroshi

doi:10.1128/aem.68.1.405-407.2002

Cited by 34 publications

(20 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2). In contrast, with potential-controlled electrolysis, a log phase was 19) . In the absence of electrolysis, TK-6 grew up to 9.8 × prolonged to 110 h, resulting in the cell numbers of 8.3 ×10 8 cells/ml, when Fe(II)-EDTA was re-oxidized to Fe(III)-EDTA by the electrode (anode).…”

Section: Culturing With Electrolysismentioning

confidence: 93%

See 1 more Smart Citation

Dissimilatory Fe (III) reduction by cytochrome c-552 in a thermophilic,obligately chemolithoautotrophic bacterium, Hydrogenobacter thermophilus TK-6

Yoshida

Ohmura

Matsumoto

et al. 2010

Journal of Japanese Society for Extremophiles

View full text Add to dashboard Cite

Section: Culturing With Electrolysismentioning

confidence: 93%

“…To confirm growth through iron reduction, TK-6 was anaerobically cultivated with elecrolysis under potentiostatic-controlling as described previously 19) . The anode bath was filled with 100 ml of culturing medium with 4 mM Fe(III)-EDTA, while the cathode bath was filled with medium without Fe(III)-EDTA.…”

Section: Culturing With Electrolysismentioning

confidence: 99%

Dissimilatory Fe (III) reduction by cytochrome c-552 in a thermophilic,obligately chemolithoautotrophic bacterium, Hydrogenobacter thermophilus TK-6

Yoshida

Ohmura

Matsumoto

et al. 2010

Journal of Japanese Society for Extremophiles

View full text Add to dashboard Cite

“…Nitrate was chosen as a model compound since it is known to be utilized as a terminal electron acceptor by many pollutant degrading microorganisms [2,[22][23][24][25]. During microbial nitrate utilization, in the first step nitrate is reduced to nitrite that is further reduced to gaseous nitrogen.…”

Section: Introductionmentioning

confidence: 99%

Bio-electro-remediation: electrokinetic transport of nitrate in a flow-through system for enhanced toluene biodegradation

et al. 2010

View full text Add to dashboard Cite

The availability of electron acceptors and nutrients is often limiting the microbiological clean-up of polluted groundwater at contaminated sites. In this study, the feasibility of electrokinetic processes to improve mass transfer was demonstrated in a model system simulating laminar groundwater flow conditions. Electrokinetic nitrate transport and enhanced biodegradation of toluene under denitrifying conditions was studied as function of voltage gradient in a new flow-through system. The study was done in a three-dimensional anaerobic model aquifer system filled with coarse sand. The influent area was divided into seven chambers thus enabling a separate addition of toluene and nitrate. Mesh electrodes were inserted laterally in order to form an electric field perpendicular to the flow direction with voltage gradients of 0, 0.125 and 0.25 V cm -1 , respectively. Biodegradation was studied after inoculation with a denitrifying microbial mixed culture. Application of the electric field resulted in nitrate migration into areas containing toluene. In the presence of denitrifying bacteria, the availability of nitrate in toluene polluted areas resulted in toluene biodegradation, demonstrated by nitrite formation and decreased toluene concentration.

show abstract

“…The functional base of the 2-CEB is an oxidation reaction generated on the anode and a reduction reaction generated on the cathode [7][8][9][10]. In an effort to maintain anodic and cathodic reactions in the 2-CEB, each electrode must be separated by a porous membrane, such as a ceramic, plastic, or nylon membrane [11,12]. Some gases, water, and ions harbored in the anolyte and catholyte may be *Corresponding author Tel: +82-2-940-7190 Fax: +82-2-919-0345 e-mail: baakdoo@skuniv.ac.kr exchanged via all kinds of membranes [13].…”

Section: Introductionmentioning

confidence: 99%

A novel three-compartmented electrochemical bioreactor for enrichment of strict anaerobes based on metabolite production

Hwang

Tran

et al. 2008

Biotechnol Bioproc E

View full text Add to dashboard Cite

In this study, a novel three-compartmented electrochemical bioreactor (3-CEB) was designed in an effort to overcome the disadvantages of the two-compartmented electrochemical bioreactor (2-CEB) separated with a cation-selective membrane for enrichment of strict anaerobes. The 3-CEB was comprised of an anode, outlet, and a cathode compartment. The outlet compartment was positioned between the anode and cathode compartment, and it was separated with the anode side by a rubber plate and with the cathode side by a porous glass membrane. A platinum wire bridging the anode and outlet compartment operated as a redox passage, however, through which no material could permeate. Butyrate fermentation bacteria were enriched on the basis of the metabolite production. Butyrate generated by strict anaerobes was significantly more abundant in the 3-CEB than in the 2-CEB. Acetic acid and lactic acid generated by facultative anaerobes was relatively higher in the 2-CEB than in the 3-CEB. Meanwhile, butyrate was not generated in the bioreactor utilized for the control test, to which the electrochemical potential was not charged. In a continuous culture using the 3-CEB, the majority of the glucose was fermented to butyrate, and the acetate additionally supplied to the bacterial culture was metabolically reduced to butyrate. More lactate than butyrate was generated from glucose in the 2-CEB. © KSBB

show abstract

Electrochemical Regeneration of Fe(III) To Support Growth on Anaerobic Iron Respiration

Cited by 34 publications

References 24 publications

Dissimilatory Fe (III) reduction by cytochrome c-552 in a thermophilic,obligately chemolithoautotrophic bacterium, Hydrogenobacter thermophilus TK-6

Dissimilatory Fe (III) reduction by cytochrome c-552 in a thermophilic,obligately chemolithoautotrophic bacterium, Hydrogenobacter thermophilus TK-6

Bio-electro-remediation: electrokinetic transport of nitrate in a flow-through system for enhanced toluene biodegradation

A novel three-compartmented electrochemical bioreactor for enrichment of strict anaerobes based on metabolite production

Contact Info

Product

Resources

About