Electricity generation and microbial communities in microbial fuel cell powered by macroalgal biomass

Nannan Zhao*, Yinan Jiang, Merlin Alvarado-Morales, Laura Treu, Irini Angelidaki, Yifeng Zhang

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The potential of macroalgae Laminaria digitata as substrate for bioelectricity production was examined in a microbial fuel cell (MFC). A maximum voltage of 0.5 V was achieved without any lag time due to the high concentration of glucose and mannitol in the hydrolysate. Total chemical oxygen demand removal efficiency reached over 95% at the end of batch run. Glucose and mannitol were degraded through isobutryrate as intermediate. The 16S rRNA gene high throughout sequencing analysis of anodic biofilm revealed complex microbial composition dominated by Bacteroidetes (39.4%), Firmicutes (20.1%), Proteobacteria (11.5%), Euryarchaeota (3.1%), Deferribacteres (1.3%), Spirochaetes (1.0%), Chloroflexi (0.7%), Actinobacteria (0.5%), and others (22.4%). The predominance of Bacteroidetes, Firmicutes and Proteobacteria demonstrated their importance for substrate degradation and simultaneous power generation. These results demonstrate that macroalgae hydrolysate can be used as a renewable carbon source of microbial electrochemical systems for various environmental applications.
Original languageEnglish
JournalBioelectrochemistry
Volume123
Pages (from-to)145-149
ISSN1567-5394
DOIs
Publication statusPublished - 2018

Keywords

  • 16S rRNA microbial analysis
  • Bioelectricity
  • Laminaria digitata
  • Macroalgae hydrolysis
  • Microbial fuel cell

Cite this

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title = "Electricity generation and microbial communities in microbial fuel cell powered by macroalgal biomass",
abstract = "The potential of macroalgae Laminaria digitata as substrate for bioelectricity production was examined in a microbial fuel cell (MFC). A maximum voltage of 0.5 V was achieved without any lag time due to the high concentration of glucose and mannitol in the hydrolysate. Total chemical oxygen demand removal efficiency reached over 95{\%} at the end of batch run. Glucose and mannitol were degraded through isobutryrate as intermediate. The 16S rRNA gene high throughout sequencing analysis of anodic biofilm revealed complex microbial composition dominated by Bacteroidetes (39.4{\%}), Firmicutes (20.1{\%}), Proteobacteria (11.5{\%}), Euryarchaeota (3.1{\%}), Deferribacteres (1.3{\%}), Spirochaetes (1.0{\%}), Chloroflexi (0.7{\%}), Actinobacteria (0.5{\%}), and others (22.4{\%}). The predominance of Bacteroidetes, Firmicutes and Proteobacteria demonstrated their importance for substrate degradation and simultaneous power generation. These results demonstrate that macroalgae hydrolysate can be used as a renewable carbon source of microbial electrochemical systems for various environmental applications.",
keywords = "16S rRNA microbial analysis, Bioelectricity, Laminaria digitata, Macroalgae hydrolysis, Microbial fuel cell",
author = "Nannan Zhao and Yinan Jiang and Merlin Alvarado-Morales and Laura Treu and Irini Angelidaki and Yifeng Zhang",
year = "2018",
doi = "10.1016/j.bioelechem.2018.05.002",
language = "English",
volume = "123",
pages = "145--149",
journal = "Bioelectrochemistry",
issn = "1567-5394",
publisher = "Elsevier",

}

Electricity generation and microbial communities in microbial fuel cell powered by macroalgal biomass. / Zhao, Nannan; Jiang, Yinan; Alvarado-Morales, Merlin; Treu, Laura; Angelidaki, Irini; Zhang, Yifeng.

In: Bioelectrochemistry, Vol. 123, 2018, p. 145-149.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Electricity generation and microbial communities in microbial fuel cell powered by macroalgal biomass

AU - Zhao, Nannan

AU - Jiang, Yinan

AU - Alvarado-Morales, Merlin

AU - Treu, Laura

AU - Angelidaki, Irini

AU - Zhang, Yifeng

PY - 2018

Y1 - 2018

N2 - The potential of macroalgae Laminaria digitata as substrate for bioelectricity production was examined in a microbial fuel cell (MFC). A maximum voltage of 0.5 V was achieved without any lag time due to the high concentration of glucose and mannitol in the hydrolysate. Total chemical oxygen demand removal efficiency reached over 95% at the end of batch run. Glucose and mannitol were degraded through isobutryrate as intermediate. The 16S rRNA gene high throughout sequencing analysis of anodic biofilm revealed complex microbial composition dominated by Bacteroidetes (39.4%), Firmicutes (20.1%), Proteobacteria (11.5%), Euryarchaeota (3.1%), Deferribacteres (1.3%), Spirochaetes (1.0%), Chloroflexi (0.7%), Actinobacteria (0.5%), and others (22.4%). The predominance of Bacteroidetes, Firmicutes and Proteobacteria demonstrated their importance for substrate degradation and simultaneous power generation. These results demonstrate that macroalgae hydrolysate can be used as a renewable carbon source of microbial electrochemical systems for various environmental applications.

AB - The potential of macroalgae Laminaria digitata as substrate for bioelectricity production was examined in a microbial fuel cell (MFC). A maximum voltage of 0.5 V was achieved without any lag time due to the high concentration of glucose and mannitol in the hydrolysate. Total chemical oxygen demand removal efficiency reached over 95% at the end of batch run. Glucose and mannitol were degraded through isobutryrate as intermediate. The 16S rRNA gene high throughout sequencing analysis of anodic biofilm revealed complex microbial composition dominated by Bacteroidetes (39.4%), Firmicutes (20.1%), Proteobacteria (11.5%), Euryarchaeota (3.1%), Deferribacteres (1.3%), Spirochaetes (1.0%), Chloroflexi (0.7%), Actinobacteria (0.5%), and others (22.4%). The predominance of Bacteroidetes, Firmicutes and Proteobacteria demonstrated their importance for substrate degradation and simultaneous power generation. These results demonstrate that macroalgae hydrolysate can be used as a renewable carbon source of microbial electrochemical systems for various environmental applications.

KW - 16S rRNA microbial analysis

KW - Bioelectricity

KW - Laminaria digitata

KW - Macroalgae hydrolysis

KW - Microbial fuel cell

U2 - 10.1016/j.bioelechem.2018.05.002

DO - 10.1016/j.bioelechem.2018.05.002

M3 - Journal article

VL - 123

SP - 145

EP - 149

JO - Bioelectrochemistry

JF - Bioelectrochemistry

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