Jang, Jae Kyung Chang, In Seop Hwang, Hwa Yeon Choo, Yeng Fung Lee, JiYoung Cho, Kyung Suk Kim, Byung Hong Nealson, Kenneth H. 2024-01-20T20:03:30Z 2024-01-20T20:03:30Z 2021-09-02 2010-01 0141-5492 https://pubs.kist.re.kr/handle/201004/131853 Propionate was used as fuel to enrich an electrochemically-active microbial consortium in a microbial fuel cell, and the bacterial consortium was analyzed by culture-independent methods including denaturing gradient gel electrophoresis (DGGE) of the 16S rDNA, and by fluorescent in situ hybridization (FISH). MFCs fed with propionate produced a current of 4.88 +/- A 0.1 mA stably on 100 mg propionate/l as COD within 3 weeks of the enrichment. When the MFCs were fed with H-2-saturated fuel containing propionate, the current dropped to 3.82 +/- A 0.07 mA. The maximum current generated was up to 8.8 mA when MFCs were fed with 200 mg propionate/l as COD. The DGGE of 16S rDNA showed that propionate-enriched MFCs have a different bacterial population from that enriched with acetate and from the inoculum used for enrichment. The major member (42%) of the consortium was an unidentified bacterium followed by gamma, beta, and delta-proteobacteria. English SPRINGER FE(III)-REDUCING BACTERIUM SHEWANELLA-PUTREFACIENS PERFORMANCE COMMUNITIES Electricity generation coupled to oxidation of propionate in a microbial fuel cell Article 10.1007/s10529-009-0118-y 1 BIOTECHNOLOGY LETTERS, v.32, no.1, pp.79 - 85 BIOTECHNOLOGY LETTERS 32 1 79 85 scie scopus 000272565900011 2-s2.0-72249103456 Biotechnology & Applied Microbiology Biotechnology & Applied Microbiology Article FE(III)-REDUCING BACTERIUM SHEWANELLA-PUTREFACIENS PERFORMANCE COMMUNITIES Bacterial community Electricity generation Microbial fuel cell (MFC) Propionate 16S rDNA