Formation of a dynamic membrane altered the microbial community and metabolic flux in fermentative hydrogen production

Jong Hun Park, Jeong Hoon Park, Young Bo Sim, Sang Hyoun Kim, Hee-Deung Park

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study aimed to investigate the relationship among dynamic membrane (DM) formation, metabolic flux, and microbial community population in dark fermentative hydrogen production. A continuously stirred tank reactor was equipped with an external submerged polyester screen mesh and inoculated with heat-treated anaerobic sludge without immobilization. DM was successfully developed on the polyester mesh and provided high-rate hydrogen production at 60.5 L H 2 /L.d and 2.39 mol H 2 /mol glucose added . DM formation was along with tightly bound extracellular polymeric substances. Flux balance analysis revealed that formation of DM altered the metabolic pathways for acetic acid production from homoacetogenesis to hydrogenesis. Bacterial community analysis suggested that Sporolactobacillaceae would contributed to this metabolic pathway shift. Nevertheless, lactic acid was not accumulated and assumed to be consumed by hydrogen producers including Clostridia.

Original languageEnglish
Pages (from-to)63-68
Number of pages6
JournalBioresource Technology
DOIs
Publication statusPublished - 2019 Jun 1

Fingerprint

Hydrogen production
microbial community
hydrogen
Fluxes
membrane
Membranes
Polyesters
Clostridium
Hydrogen
Lactic acid
Acetic acid
Acetic Acid
acetic acid
immobilization
Glucose
Lactic Acid
glucose
sludge
acid
Metabolic Networks and Pathways

Keywords

  • Biofilm
  • Dynamic membrane
  • Flux balance analysis
  • High-rate bio-H
  • Sporolactobacillaceae

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

Formation of a dynamic membrane altered the microbial community and metabolic flux in fermentative hydrogen production. / Park, Jong Hun; Park, Jeong Hoon; Sim, Young Bo; Kim, Sang Hyoun; Park, Hee-Deung.

In: Bioresource Technology, 01.06.2019, p. 63-68.

Research output: Contribution to journalArticle

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