Enhanced Current Generation Using Mutualistic Interaction of Yeast-Bacterial Coculture in Dual Chamber Microbial Fuel Cell

M. Amirul Islam, Baranitharan Ethiraj, Chin Kui Cheng, Abu Yousuf, Selvakumar Thiruvenkadam, Reddy Prasad, Md Maksudur Rahman Khan

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

Although exogenous mediators can distinctly enhance the performance of yeast driven microbial fuel cell (MFC), the possibility of mediator's toxicity, environmental risk, and cost are the main challenges facing toward its application in MFCs. Therefore, the use of naturally produced electron shuttles for unmediated yeast would be of great interest since it can solve most of the above-mentioned problems. The present study is to investigate the possibility of the use of electron shuttle producing bacteria Klebsiella pneumonia (K. pneumonia) to boost up the performance of yeast Lipomyces starkeyi (L. starkeyi) driven MFC. The MFCs inoculated with L. starkeyi and K. pneumoniae coculture achieved a maximum power density of 12.87 W/m3 which is about 3 and 6 times higher than that of MFC solely inoculated with pure yeast and bacteria, respectively, demonstrating that the yeast cells have successfully utilized the reduced electron shuttles excreted by the bacteria. The occurrence of the mutualistic interactions was further supported by the CV and EIS results. The findings of this work suggest that the use of mutualistic interaction of yeast and bacteria could be a new way to increase the performance of the MFCs.

Original languageBritish English
Pages (from-to)813-821
Number of pages9
JournalIndustrial and Engineering Chemistry Research
Volume57
Issue number3
DOIs
StatePublished - 24 Jan 2018

Fingerprint

Dive into the research topics of 'Enhanced Current Generation Using Mutualistic Interaction of Yeast-Bacterial Coculture in Dual Chamber Microbial Fuel Cell'. Together they form a unique fingerprint.

Cite this