ELECTRICITY PRODUCTION IN TWO-CHAMBER MICROBIAL FUEL CELLS USING EXOELECTROGENIC SHEWANELLA SP. ISOLATED FROM SEDIMENTS OF THE CASPIAN SEA

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MOHSENI M.; EKRAMIL S.M.

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Journal: Journal of Molecular and Cellular Researches Year:2017 | Volume:30 | Issue:2 Page(s): 198-211

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Title

ELECTRICITY PRODUCTION IN TWO-CHAMBER MICROBIAL FUEL CELLS USING EXOELECTROGENIC SHEWANELLA SP. ISOLATED FROM SEDIMENTS OF THE CASPIAN SEA

Author(s)

MOHSENI M. | EKRAMIL S.M. | Issue Writer Certificate

Keywords

SHEWANELLAQ1

MICROBIAL FUEL CELLSQ1

CASPIAN SEAQ2

Abstract

A microbial fuel cell is a bioelectrochemical system that converts chemical energy in organic compounds to electrical energy through catalytic reactions of microorganisms under anaerobic conditions. Isolation and characterization of SHEWANELLA sp. from sediments of the CASPIAN SEA and investigation of its ability to produce electricity were the aims of this study. Samples collected from the sea sediments were cultured in Kligler agar. After incubation at 30oC, black colonies were selected. After identification of isolates based on morphology, physiology and molecular characteristics, one was chosen and its ability to produce electricity was evaluated. A two-chamber microbial fuel cell was designed and the selected isolate ME1 was inoculated into the anode chamber containing the LB medium. The neutral red was used as an intermediate electron transport and electrodes were made of graphite. A sulfate reducing bacterium was isolated from sediments of the CASPIAN SEA and named as isolate ME1. The results of morphological and physiological characteristics of ME1 showed that this bacterium belonged to the SHEWANELLA sp. Moreover, 16S rRNA sequencing and phylogenetic analyses exhibited that ME1 was similar to SHEWANELLA seohaensis with 98.87% homology. The results demonstrated that the isolated bacterium was able to produce electricity in a microbial fuel cell. In addition, the results of current studies showed that the isolate ME1 had the ability to produce electricity with a constant open circuit voltage of 765 mV. A maximum power density and a maximum current density were evaluated at 140.817 mW m-2 and 395.50 mA m-2, respectively.The results of this study revealed that the SHEWANELLA sp. ME1 isolated from sediments of the CASPIAN SEA had the ability to produce electricity in MICROBIAL FUEL CELLS. This isolate could be a candidate for the production of electricity in wastewater treatment systems.

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APA: Copy

MOHSENI, M., & EKRAMIL, S.M.. (2017). ELECTRICITY PRODUCTION IN TWO-CHAMBER MICROBIAL FUEL CELLS USING EXOELECTROGENIC SHEWANELLA SP. ISOLATED FROM SEDIMENTS OF THE CASPIAN SEA. JOURNAL OF MOLECULAR AND CELLULAR RESEARCH (IRANIAN JOURNAL OF BIOLOGY), 30(2 ), 198-211. SID. https://sid.ir/paper/248592/en

Vancouver: Copy

MOHSENI M., EKRAMIL S.M.. ELECTRICITY PRODUCTION IN TWO-CHAMBER MICROBIAL FUEL CELLS USING EXOELECTROGENIC SHEWANELLA SP. ISOLATED FROM SEDIMENTS OF THE CASPIAN SEA. JOURNAL OF MOLECULAR AND CELLULAR RESEARCH (IRANIAN JOURNAL OF BIOLOGY)[Internet]. 2017;30(2 ):198-211. Available from: https://sid.ir/paper/248592/en

IEEE: Copy

M. MOHSENI, and S.M. EKRAMIL, “ELECTRICITY PRODUCTION IN TWO-CHAMBER MICROBIAL FUEL CELLS USING EXOELECTROGENIC SHEWANELLA SP. ISOLATED FROM SEDIMENTS OF THE CASPIAN SEA,” JOURNAL OF MOLECULAR AND CELLULAR RESEARCH (IRANIAN JOURNAL OF BIOLOGY), vol. 30, no. 2 , pp. 198–211, 2017, [Online]. Available: https://sid.ir/paper/248592/en

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