{"title":"Comparative study on the metabolic behaviour of anode biofilm in microbial fuel cell under different external resistance","authors":"Yana Mersinkova, Hyusein Yemendzhiev, V. Nenov","doi":"10.1080/13102818.2022.2055491","DOIUrl":null,"url":null,"abstract":"Abstract In this study the influence of the external circuit resistance on the metabolic behaviour of anodic biofilm in Microbial fuel cell (MFC) was studied. The results obtained demonstrated that extremely low and extremely high circuit loads could deteriorate the bio-electrochemistry of anodic respiration by shifting the microbial metabolism towards typical fermentation of the substrates. The best conditions for respiration and efficient substrate mineralisation of nearly 70% were found in the MFC reactor with 0.1 kΩ resistance in the anode and cathode connecting circuit. Two species of electrochemically active bacteria were isolated from the anodic community and were taxonomically affiliated to Pseudomonas and Bacillus genera based on 16 s rRNA genes amplification and sequencing.","PeriodicalId":9076,"journal":{"name":"Biotechnology & Biotechnological Equipment","volume":"36 1","pages":"142 - 147"},"PeriodicalIF":1.5000,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biotechnology & Biotechnological Equipment","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/13102818.2022.2055491","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 1
Abstract
Abstract In this study the influence of the external circuit resistance on the metabolic behaviour of anodic biofilm in Microbial fuel cell (MFC) was studied. The results obtained demonstrated that extremely low and extremely high circuit loads could deteriorate the bio-electrochemistry of anodic respiration by shifting the microbial metabolism towards typical fermentation of the substrates. The best conditions for respiration and efficient substrate mineralisation of nearly 70% were found in the MFC reactor with 0.1 kΩ resistance in the anode and cathode connecting circuit. Two species of electrochemically active bacteria were isolated from the anodic community and were taxonomically affiliated to Pseudomonas and Bacillus genera based on 16 s rRNA genes amplification and sequencing.
期刊介绍：
Biotechnology & Biotechnological Equipment (B&BE) is an international open access journal publishing cutting-edge research. A modern world requires modern biotechnology and nanobiology. The journal is a forum that provides society with valuable information for a healthy and better life and promotes “the Science and Culture of Nature”.
The journal publishes original research and reviews with a multidisciplinary perspective; expanded case reports with a focus on molecular medical research and advanced practice in evidence-based medicine are also considered.
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