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- 저자 : Munachimso Odinakachi Elemba (검색결과 3 건)
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Kingsley Ekene Nwagu1,Imo A. Ekpo,Benjamin Utip Ekaluo,Godwin Michael Ubi,Munachimso Odinakachi Elemba,Uzoh Chukwuma Victor 한국미생물·생명공학회 2019 한국미생물·생명공학회지 Vol.47 No.4
In this study we attempted to screen bacteria and fungi that generate electricity while treating wastewater using optimized double-chamber microbial fuel cell (MFC) system parameters. Optimization was carried out for five best exoelectrogenic isolates (two bacteria and three fungi) at pH values of 6.0, 7.5, 8.5, and 9.5, and temperatures of 30, 35, 40, and 45℃; the generated power densities were measured using a digital multimeter (DT9205A). The isolates were identified using molecular characterization, followed by the phylogenetic analysis of isolates with known exoelectrogenic microorganisms. The bacterium, Proteus species, N6 (KX548358.1) and fungus, Candida parapsilosis, S10 (KX548360) produced the highest power densities of 1.59 and 1.55 W/m2 (at a pH of 8.5 and temperatures of 35 and 40℃) within 24 h, respectively. Other fungi— Clavispora lusitaniae, S9 (KX548359.1) at 40℃, Clavispora lusitaniae, S14 (KX548361.1) at 35℃—and bacterium— Providencia species, N4 (KX548357.1) at 40℃—produced power densities of 1.51, 1.46, and 1.44 W/m2, respectively within 24 h. The MFCs achieved higher power densities at a pH of 8.5, temperature of 40℃ within 24 h. The bacterial isolates have a close evolutionary relationship with other known exoelectrogenic microorganisms. These findings helped us determine the optimal pH, temperature, evolutionary relationship, and exoelectrogenic fungal species other than bacteria that enhance MFC performance.
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( Kingsley Ekene Nwagu ),( Imo A. Ekpo ),( Benjamin Utip Ekaluo ),( Godwin Michael Ubi ),( Munachimso Odinakachi Elemba ),( Uzoh Chukwuma Victor ) 한국미생물 · 생명공학회 2019 한국미생물·생명공학회지 Vol.47 No.4
In this study we attempted to screen bacteria and fungi that generate electricity while treating wastewater using optimized double-chamber microbial fuel cell (MFC) system parameters. Optimization was carried out for five best exoelectrogenic isolates (two bacteria and three fungi) at pH values of 6.0, 7.5, 8.5, and 9.5, and temperatures of 30, 35, 40, and 45℃; the generated power densities were measured using a digital multimeter (DT9205A). The isolates were identified using molecular characterization, followed by the phylogenetic analysis of isolates with known exoelectrogenic microorganisms. The bacterium, Proteus species, N6 (KX548358.1) and fungus, Candida parapsilosis, S10 (KX548360) produced the highest power densities of 1.59 and 1.55 W/m<sup>2</sup> (at a pH of 8.5 and temperatures of 35 and 40℃) within 24 h, respectively. Other fungi― Clavispora lusitaniae, S9 (KX548359.1) at 40℃, Clavispora lusitaniae, S14 (KX548361.1) at 35℃―and bacterium― Providencia species, N4 (KX548357.1) at 40℃―produced power densities of 1.51, 1.46, and 1.44 W/m<sup>2</sup>, respectively within 24 h. The MFCs achieved higher power densities at a pH of 8.5, temperature of 40℃ within 24 h. The bacterial isolates have a close evolutionary relationship with other known exoelectrogenic microorganisms. These findings helped us determine the optimal pH, temperature, evolutionary relationship, and exoelectrogenic fungal species other than bacteria that enhance MFC performance.
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Nwagu, Kingsley Ekene,Ekpo, Imo A.,Ekaluo, Benjamin Utip,Ubi, Godwin Michael,Elemba, Munachimso Odinakachi,Victor, Uzoh Chukwuma The Korean Society for Microbiology and Biotechnol 2019 한국미생물·생명공학회지 Vol.47 No.4
In this study we attempted to screen bacteria and fungi that generate electricity while treating wastewater using optimized double-chamber microbial fuel cell (MFC) system parameters. Optimization was carried out for five best exoelectrogenic isolates (two bacteria and three fungi) at pH values of 6.0, 7.5, 8.5, and 9.5, and temperatures of 30, 35, 40, and 45℃; the generated power densities were measured using a digital multimeter (DT9205A). The isolates were identified using molecular characterization, followed by the phylogenetic analysis of isolates with known exoelectrogenic microorganisms. The bacterium, Proteus species, N6 (KX548358.1) and fungus, Candida parapsilosis, S10 (KX548360) produced the highest power densities of 1.59 and 1.55 W/m<sup>2</sup> (at a pH of 8.5 and temperatures of 35 and 40℃) within 24 h, respectively. Other fungi-Clavispora lusitaniae, S9 (KX548359.1) at 40℃, Clavispora lusitaniae, S14 (KX548361.1) at 35℃-and bacterium-Providencia species, N4 (KX548357.1) at 40℃-produced power densities of 1.51, 1.46, and 1.44 W/m<sup>2</sup>, respectively within 24 h. The MFCs achieved higher power densities at a pH of 8.5, temperature of 40℃ within 24 h. The bacterial isolates have a close evolutionary relationship with other known exoelectrogenic microorganisms. These findings helped us determine the optimal pH, temperature, evolutionary relationship, and exoelectrogenic fungal species other than bacteria that enhance MFC performance.
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