【作者】 李颖； 孙永明； 孔晓英； 李连华； 杨改秀； 袁振宏；

【Author】 Li Ying,Sun Yongming,Kong Xiaoying,Li Lianhua,Yang Gaixiu,Yuan Zhenhong (Guangzhou Institute of Energy Conversion Chinese Academy of sciences,Guangzhou,Guangdong 510640,China)

【机构】 中国科学院广州能源研究所,可再生能源与天然气水合物重点实验室；

【摘要】 为了获得一株产电菌株,并研究其产电性能。采用厌氧分离法从微生物燃料电池中分离出一株新的产电菌株LY-2,通过菌株形态、生理生化特性及16S rDNA系统发育分析做分类学鉴定,采用循环伏安扫描及菌种在微生物燃料电池中产电情况做产电特性验证。结果表明,该菌与Dysgonomonas mossii最相近,命名为Dysgonomonas mossii LY-2。循环伏安扫描显示,该菌具有电化学活性,接种到微生物燃料电池中,以牛肉膏为燃料产生的最大电压为0.61V,最大功率密度为104.3mW/m~2,具有在微生物燃电池中产电研究和应用的前景。更多还原

【Abstract】 In order to obtain an electrochemically active bacterium and research its electricity-producing performance, strain LY-2 was isolated from microbial fuel cell.According to its phenotypic,physiological and biochemical characteristics as well as the phylogenetic analysis based on the sequence of 16S rDNA,it shared the highest similarity to Dysgonomonas mossii and was identified as Dysgonomonas mossii LY-2.Results of cyclic voltammetry experiment showed that strain LY-2 was electrochemically active bacterium.The preliminary current generation experiment showed that LY-2 could use beef extract for electricity production.When beef extract was used as a fuel,MFC had the highest voltage(0.61 V)and power density(104.3 mW/m~2).Based on these results,strain LY-2 seems to promise on research and application in MFC.更多还原