2009
DOI: 10.1021/es901993y
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Bioelectrocatalysis of Acetobacter aceti and Gluconobacter roseus for Current Generation

Abstract: Acetobacter aceti and Gluconobacter roseus, which are known to be responsible for the spoilage of wine, are used for current generation in batch-type microbial biofuel cells and it has been shown for the first time that these two microorganisms do not require mediators for the transfer of electrons to the anode. Three biofuel cells were constructed with two cells containing the pure cultures of each of the microorganisms as the biocatalyst (A-MFC, G-MFC) and the third cell was constructed with the mixed cultur… Show more

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Cited by 35 publications
(14 citation statements)
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“…Another cooperative method of growth was observed for Acetobacter aceti and Gluconobacter roseus. Although both species individually can generate power from substrate oxidation owing to their periplasmic quinoheme protein-cytochrome c complexes and membrane-bound ubiquinone, co-cultures achieved higher rates of substrate removal and a greater maximum power density (140 mW m −3 ) than the individual strains 111 . Often, exoelectrogens can use breakdown products by other cells to generate current.…”
Section: [H1] Microbial Electroecologymentioning
confidence: 98%
“…Another cooperative method of growth was observed for Acetobacter aceti and Gluconobacter roseus. Although both species individually can generate power from substrate oxidation owing to their periplasmic quinoheme protein-cytochrome c complexes and membrane-bound ubiquinone, co-cultures achieved higher rates of substrate removal and a greater maximum power density (140 mW m −3 ) than the individual strains 111 . Often, exoelectrogens can use breakdown products by other cells to generate current.…”
Section: [H1] Microbial Electroecologymentioning
confidence: 98%
“…In the absence of the anode as electron acceptor, the OCV-microbial community might be more adapted to utilising alternatives such as oxygen. As oxygen diffusion is greater at higher flow-rates the microbial metabolic rate in MFCdown might increase causing further degradation of feedstock, which has been reported to lower the OCV [25]. The same level of metabolic activity could not continue once the flow-rate was lowered and this is reflected by the subsequent rise in OCV.…”
Section: Effect Of Flow-rate On Fluidically Joined Mfcsmentioning
confidence: 99%
“…Karthikeyan et al (2009) menemukan bahwa A. aceti dapat menghasilkan energi listrik pada MFC tanpa mediator elektron dengan menggunakan glukosa sebagai sumber karbon (substrat). Potensial listrik yang dihasilkan dalam penelitian tersebut adalah sebesar ~500 mV selama delapan hari percobaan dengan konsentrasi glukosa pada awal percobaan sebesar ~0,5% (b/v).…”
Section: Pendahuluanunclassified
“…Hal ini sesuai dengan pendapat You et al (2006) bahwa pada umumnya sistem MFC dua ruang memiliki hambatan internal yang besar, hingga 1.000 Ω dan A. aceti cenderung membentuk lapisan pada permukaan anoda (Karthikeyan et al, 2009). Hambatan internal yang besar dari kedua jenis MFC berlangsung pada jam ke-12 sampai jam ke-28 yang sejalan dengan harga pH yang semakin rendah.…”
Section: Kerapatan Daya Dan Energiunclassified