Combining microbial cultures for efficient production of electricity from butyrate in a microbial electrochemical cell.
Combining microbial cultures for efficient production of electricity from butyrate in a microbial electrochemical cell.
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DOI：
10.1016/j.biortech.2014.06.090
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发表时间：
2014-10
影响因子：
11.4
通讯作者：
Krajmalnik-Brown R
中科院分区：
文献类型：
--
作者：
Miceli JF 3rd;Garcia-Peña I;Parameswaran P;Torres CI;Krajmalnik-Brown R
丁酸盐是厌氧发酵的重要产物，但微生物电化学池中的高效阳极呼吸细菌(ARB)硫还原地杆菌不能直接利用丁酸盐。通过将丁酸盐氧化群落与富含地质杆菌的培养相结合，我们产生了一个微生物群落，其表现优于目前从丁酸盐生产的文献中发现的许多自然衍生群落，并在电流密度(~11A/m2)和库仑效率(~70%)方面与表现最好的自然培养物相媲美。微生物群落分析支持微生物群落的转变，从海洋热液喷口群落中缺乏有效ARB的群落转变为阳极生物膜中约80%的地质杆菌组成的群落。这表明，通过将两种含有互补生化途径的混合微生物培养物结合在一起，成功地生产和适应了一种新的微生物培养物，可以从丁酸盐中产生电流，具有高电流密度和高库仑效率。
Butyrate is an important product of anaerobic fermentation; however, it is not directly used by characterized strains of the highly efficient anode respiring bacteria (ARB) Geobacter sulfurreducens in microbial electrochemical cells. By combining a butyrate-oxidizing community with a Geobacter rich culture, we generated a microbial community which outperformed many naturally derived communities found in the literature for current production from butyrate and rivaled the highest performing natural cultures in terms of current density (~11 A/m2) and Coulombic efficiency (~70%). Microbial community analyses support the shift in the microbial community from one lacking efficient ARB in the marine hydrothermal vent community to a community consisting of ~80% Geobacter in the anode biofilm. This demonstrates the successful production and adaptation of a novel microbial culture for generating electrical current from butyrate with high current density and high Coulombic efficiency, by combining two mixed micro bial cultures containing complementing biochemical pathways.
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影响因子：
11.4
作者：
Freguia, Stefano;Teh, Ee Hoi;Rabaey, Korneel
通讯作者：
Rabaey, Korneel
影响因子：
11.4
作者：
Garcia-Pena, E. I.;Parameswaran, P.;Krajmalnik-Brown, R.
通讯作者：
Krajmalnik-Brown, R.
影响因子：
2.1
作者：
Pham, CA;Jung, SJ;Chun, J
通讯作者：
Chun, J
影响因子：
11.4
作者：
Rosenbaum, Miriam A.;Bar, Haim Y.;Angenent, Largus T.
通讯作者：
Angenent, Largus T.
影响因子：
4.1
作者：
Guerrero-Barajas, C.;Garcia-Pena, E. I.
通讯作者：
Garcia-Pena, E. I.