Nitrate Feed Improves Growth and Ethanol Production of
Clostridium ljungdahlii
acetogenic bacteria
bioreactor system
gas fermentation
nitrate
pH-regulation
Journal
Frontiers in microbiology
ISSN: 1664-302X
Titre abrégé: Front Microbiol
Pays: Switzerland
ID NLM: 101548977
Informations de publication
Date de publication:
2020
2020
Historique:
received:
15
12
2019
accepted:
27
03
2020
entrez:
22
5
2020
pubmed:
22
5
2020
medline:
22
5
2020
Statut:
epublish
Résumé
The pH-value in fermentation broth is a critical factor for the metabolic flux and growth behavior of acetogens. A decreasing pH level throughout time due to undissociated acetic acid accumulation is anticipated under uncontrolled pH conditions such as in bottle experiments. As a result, the impact of changes in the metabolism (e.g., due to a genetic modification) might remain unclear or even unrevealed. In contrast, pH-controlled conditions can be achieved in bioreactors. Here, we present a self-built, comparatively cheap, and user-friendly multiple-bioreactor system (MBS) consisting of six pH-controlled bioreactors at a 1-L scale. We tested the functionality of the MBS by cultivating the acetogen
Identifiants
pubmed: 32435236
doi: 10.3389/fmicb.2020.00724
pmc: PMC7219301
doi:
Types de publication
Journal Article
Langues
eng
Pagination
724Informations de copyright
Copyright © 2020 Klask, Kliem-Kuster, Molitor and Angenent.
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