a Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou City 225002, People's Republic of China.
Can J Microbiol. 2014 Nov;60(11):753-9. doi: 10.1139/cjm-2014-0389. Epub 2014 Sep 18.
Great attention has been focused on Gram-negative bacteria in the application of microbial fuel cells. In this study, the Gram-positive bacterium Enterococcus faecalis was employed in microbial fuel cells. Bacterial biofilms formed by E. faecalis ZER6 were investigated with respect to electricity production through the riboflavin-shuttled extracellular electron transfer. Trace riboflavin was shown to be essential for transferring electrons derived from the oxidation of glucose outside the peptidoglycan layer in the cell wall of E. faecalis biofilms formed on the surface of electrodes, in the absence of other potential electron mediators (e.g., yeast extract).
人们高度关注革兰氏阴性菌在微生物燃料电池中的应用。在本研究中，采用革兰氏阳性菌屎肠球菌在微生物燃料电池中进行发电。本文研究了粪肠球菌 ZER6 形成的细菌生物膜，通过核黄素穿梭介导的细胞外电子传递来发电。结果表明，在不存在其他潜在电子介体（例如酵母提取物）的情况下，痕量核黄素对于将葡萄糖氧化产生的电子从粪肠球菌生物膜细胞壁的肽聚糖层转移到电极表面至关重要。
