Generation of Electricity and Analysis of Microbial Communities in Wheat Straw Biomass-Powered Microbial Fuel Cells

Zhang, Yifeng; Min, Booki; Huang, Liping; Angelidaki, Irini

doi:10.1128/aem.02240-08

Cited by 174 publications

(80 citation statements)

References 48 publications

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“…strain JR [34], and Thermincola ferriacetica [35], were known as a source of exoelectrogens. The present results differed from that of the observed exoelectrogens of a two-chambered MFC using wheat straw biomass for which the predominant culture was Bacteroidetes with 40% of sequences [16]. And Bacteroidetes and γ-proteobacteria were the most abundant phylum in the anodic biofilm of an air-cathode dualchamber MFC fed with glucose and glutamate [36].…”

Section: Microbial Community Analysiscontrasting

confidence: 55%

“…And Bacteroidetes and γ-proteobacteria were the most abundant phylum in the anodic biofilm of an air-cathode dualchamber MFC fed with glucose and glutamate [36]. In MFCs, the microbial community was greatly influenced by the substrates, operation time, and architecture of the cell [16,37,38]. Rice straw hydrolyte generally consists of glucose, xylose, arabinose, acetic acid, and small amount of furfural and 5-hydroxymethyl-furfural [39].…”

Section: Microbial Community Analysismentioning

confidence: 99%

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Microbial Community Structures Differentiated in a Single-Chamber Air-Cathode Microbial Fuel Cell Fueled with Rice Straw Hydrolysate

Wang¹,

Lee²,

Lim³

et al. 2015

New Microbial Technologies for Advanced Biofuels

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Background: The microbial fuel cell represents a novel technology to simultaneously generate electric power and treat wastewater. Both pure organic matter and real wastewater can be used as fuel to generate electric power and the substrate type can influence the microbial community structure. In the present study, rice straw, an important feedstock source in the world, was used as fuel after pretreatment with diluted acid method for a microbial fuel cell to obtain electric power. Moreover, the microbial community structures of anodic and cathodic biofilm and planktonic culturewere analyzed and compared to reveal the effect of niche on microbial community structure. Results: The microbial fuel cell produced a maximum power density of 137.6 ± 15.5 mW/m 2 at a COD concentration of 400 mg/L, which was further increased to 293.33 ± 7.89 mW/m 2 through adjusting the electrolyte conductivity from 5.6 mS/cm to 17 mS/cm. Microbial community analysis showed reduction of the microbial diversities of the anodic biofilm and planktonic culture, whereas diversity of the cathodic biofilm was increased. Planktonic microbial communities were clustered closer to the anodic microbial communities compared to the cathodic biofilm. The differentiation in microbial community structure of the samples was caused by minor portion of the genus. The three samples shared the same predominant phylum of Proteobacteria. The abundance of exoelectrogenic genus was increased with Desulfobulbus as the shared most abundant genus; while the most abundant exoelectrogenic genus of Clostridium in the inoculum was reduced. Sulfate reducing bacteria accounted for large relative abundance in all the samples, whereas the relative abundance varied in different samples.

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Section: Microbial Community Analysiscontrasting

confidence: 55%

Section: Microbial Community Analysismentioning

confidence: 99%

Microbial Community Structures Differentiated in a Single-Chamber Air-Cathode Microbial Fuel Cell Fueled with Rice Straw Hydrolysate

Wang¹,

Lee²,

Lim³

et al. 2015

New Microbial Technologies for Advanced Biofuels

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“…Studies have also been performed to identify micro-organisms inhabiting CE-MFCs (Shimoyama et al, 2009;Watanabe et al, 2011); in these studies, molecular ecological analyses revealed that several Bacteroidetes sequence types occurred abundantly in CE-MFC, including sequence types CE38 (closely related to Parabacteroides merdae) and CE47 (closely related to Dysgonomonas mossii). Bacteroidetes sequence types have also been detected in other MFC reactors (Choo et al, 2006;Kim et al, 2006;Zhang et al, 2009Zhang et al, , 2011. Although no isolate of the phylum Bacteroidetes is known to be able to generate current in MFCs, the above results suggest that they may have some ecological roles in CE-MFC.…”

mentioning

confidence: 75%

Dysgonomonas oryzarvi sp. nov., isolated from a microbial fuel cell

Kodama

Shimoyama

Watanabe

2012

International Journal of Systematic and Evolutionary Microbiology

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A Gram-stain-negative, non-motile and coccoid-to short-rod-shaped bacterium, designated strain Dy73 T , was isolated from a microbial fuel cell that had been inoculated with rice paddy field soil and fed starch, peptone and fish extract as fuels. On the basis of 16S rRNA gene sequence phylogeny, strain Dy73 T was affiliated with the genus Dysgonomonas in the phylum Bacteroidetes, and most closely related to Dysgonomonas mossii CCUG 43457 T with a 16S rRNA gene sequence similarity value of 99.7 %. However, the DNA-DNA relatedness value between strain Dy73 T and Dysgonomonas mossii CCUG 43457 T was 34.8 %. In addition, strain Dy73 T was found to be different from other recognized species of the genus Dysgonomonas in taxonomically important traits, including habitat, DNA G+C content, bile resistance and fatty-acid composition. Based on these characteristics, strain Dy73 T represents a novel species of the genus Dysgonomonas for which the name Dysgonomonas oryzarvi sp. nov. is proposed. The type strain is Dy73 T (5JCM 16859 T 5KCTC 5936 T ).

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“…They found a different bacterial consortium after operation, as Rhizobiales, Clostridiales and Chloroflexi were predominant. In another two-chamber MFC fed wheat straw hydrolysate, Bacteroidetes and Alpha-, Beta-and Deltaproteobacteria were found to be dominant in the community [16]. Thus, there were no common bacterial communities identified with these complex substrates.…”

Section: Introductionmentioning

confidence: 94%

Evolving Microbial Communities in Cellulose-Fed Microbial Fuel Cell

et al. 2018

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Abstract:The abundance of cellulosic wastes make them attractive source of energy for producing electricity in microbial fuel cells (MFCs). However, electricity production from cellulose requires obligate anaerobes that can degrade cellulose and transfer electrons to the electrode (exoelectrogens), and thus most previous MFC studies have been conducted using two-chamber systems to avoid oxygen contamination of the anode. Single-chamber, air-cathode MFCs typically produce higher power densities than aqueous catholyte MFCs and avoid energy input for the cathodic reaction. To better understand the bacterial communities that evolve in single-chamber air-cathode MFCs fed cellulose, we examined the changes in the bacterial consortium in an MFC fed cellulose over time. The most predominant bacteria shown to be capable electron generation was Firmicutes, with the fermenters decomposing cellulose Bacteroidetes. The main genera developed after extended operation of the cellulose-fed MFC were cellulolytic strains, fermenters and electrogens that included: Parabacteroides, Proteiniphilum, Catonella and Clostridium. These results demonstrate that different communities evolve in air-cathode MFCs fed cellulose than the previous two-chamber reactors.

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Generation of Electricity and Analysis of Microbial Communities in Wheat Straw Biomass-Powered Microbial Fuel Cells

Cited by 174 publications

References 48 publications

Microbial Community Structures Differentiated in a Single-Chamber Air-Cathode Microbial Fuel Cell Fueled with Rice Straw Hydrolysate

Microbial Community Structures Differentiated in a Single-Chamber Air-Cathode Microbial Fuel Cell Fueled with Rice Straw Hydrolysate

Dysgonomonas oryzarvi sp. nov., isolated from a microbial fuel cell

Evolving Microbial Communities in Cellulose-Fed Microbial Fuel Cell

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