Abstract：
:The long-term effect of set potential on oxygen reducing biocathodes was investigated in terms of electrochemical and biological characteristics. Three biocathodes were poised at 200, 60 and -100 mV vs. saturated calomel electrode (SCE) for 110 days, including the first 17 days for startup. Electrochemical analyses showed that 60 mV was the optimum potential during long-term operation. The performance of all the biocathodes kept increasing after startup, suggesting a period longer than startup time needed to make potential regulation more effective. The inherent characteristics without oxygen transfer limitation were studied. Different from short-term regulation, the amounts of biomass were similar while the specific electrochemical activity was significantly influenced by potential. Moreover, potential showed a strong selection for cathode bacteria. Clones 98% similar with an uncultured Bacteroidetes bacterium clone CG84 accounted for 75% to 80% of the sequences on the biocathodes that showed higher electrochemical activity (60 and -100 mV).
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Xia X,Sun Y,Liang P,Huang Xdoi
10.1016/j.biortech.2012.06.017subject
Has Abstractpub_date
2012-09-01 00:00:00pages
26-33eissn
0960-8524issn
1873-2976pii
S0960-8524(12)00921-2journal_volume
120pub_type
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pub_type： 杂志文章,多中心研究
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更新日期：2009-07-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2011-03-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
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更新日期：2005-01-01 00:00:00
abstract：:A thermophilic strain Bacillus subtilis GXA-28 with capability of γ-PGA production was characterized, and its product was identified. The effect of temperatures on cell growth, γ-PGA yield and molecular weight were investigated. Results showed that γ-PGA yield reached 19.92g/L at 45°C with a high productivity of 0.91g...
journal_title：Bioresource technology
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doi：10.1016/j.biortech.2013.12.086
更新日期：2014-03-01 00:00:00
