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This study investigates the microbial community differences in propionate-fed microbial fuel cell systems under open and closed circuit conditions, revealing distinct community compositions and metabolic activities.

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What they did

System
MFC

What worked

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Abstract

Key findings

  • The microbial community in open circuit conditions was dominated by Geobacter and Shewanella, while closed circuit conditions favored the growth of Pseudomonas and Acinetobacter.
  • Propionate-fed MFCs under open circuit conditions showed higher power generation and coulombic efficiency compared to closed circuit conditions.
  • The microbial community in closed circuit conditions exhibited a higher diversity of functional genes involved in electron transfer and metabolism.

Keywords

Microbial fuel cellGeobacterMicrobial population biologyBiofilmPropionateBacteria

Identifiers

DOI
10.1007/s00253-010-2903-x
Journal
Applied Microbiology and Biotechnology
Year
2010