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Title: Synergistic microbial consortium for bioenergy generation from complex natural energy sources
Authors: Wang, Victor Bochuan
Yam, Joey Kuok Hoong
Chye, Joachim Loo Say
Chua, Song-Lin
Zhang, Qichun
Cao, Bin
Yang, Liang
Keywords: DRNTU::Engineering::Bioengineering
Issue Date: 2014
Source: Wang, V. B., Yam, J. K. H., Chua, S.-L., Zhang, Q., Cao, B., et al. (2014). Synergistic Microbial Consortium for Bioenergy Generation from Complex Natural Energy Sources. The Scientific World Journal, 2014, 139653-.
Series/Report no.: The scientific world journal
Abstract: Microbial species have evolved diverse mechanisms for utilization of complex carbon sources. Proper combination of targeted species can affect bioenergy production from natural waste products. Here, we established a stable microbial consortium with Escherichia coli and Shewanella oneidensis in microbial fuel cells (MFCs) to produce bioenergy from an abundant natural energy source, in the form of the sarcocarp harvested from coconuts. This component is mostly discarded as waste. However, through its usage as a feedstock for MFCs to produce useful energy in this study, the sarcocarp can be utilized meaningfully. The monospecies S. oneidensis system was able to generate bioenergy in a short experimental time frame while the monospecies E. coli system generated significantly less bioenergy. A combination of E. coli and S. oneidensis in the ratio of 1 : 9 (v : v) significantly enhanced the experimental time frame and magnitude of bioenergy generation. The synergistic effect is suggested to arise from E. coli and S. oneidensis utilizing different nutrients as electron donors and effect of flavins secreted by S. oneidensis. Confocal images confirmed the presence of biofilms and point towards their importance in generating bioenergy in MFCs.
ISSN: 2356-6140
DOI: 10.1155/2014/139653
Rights: © 2014 Victor Bochuan Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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