The article type was erroneously given as Perspective. The correct article type is Review.
A few author corrections were not implemented.
A correction has been made to section: 1. Gaseous biofuels, 1.3 Theoretical energy yield from gaseous biofuels produced via AD, paragraph 2:
“The overall methanogenic reaction looks like this:
C6H12O6 + 2H2O → 2CH4 + 3CO2 + 2H2O
or in a simplified form:
C6H12O6 → 3CH4 + 3CO2”
A correction has been made to section: 1. Gaseous biofuels, 1.3 Theoretical energy yield from gaseous biofuels produced via AD, paragraph 3:
“When all stages proceed simultaneously, 3 moles of bio-CH4 are produced.”
A correction has been made to section: 5. Why bio-H2currently loses to bio-CH4– bottlenecks and prospective mitigation strategies, 5.6 Comprehensive valorization of the final digestate after the AD process, paragraph 2:
“Furthermore, AD can be integrated with photofermentation between the acidogenic and methanogenic stages (Figure 5D), bioelectrochemical systems such as microbial electrolysis cells (MECs), power-to-gas concepts, and carbon capture and utilization (CCU) strategies.”
There was a mistake in Figures 2–4 as published. The correction requested was not implemented.
The corrected Figures 2–4 appear below.
Figure 2
Figure 3
Figure 4
The original version of this article has been updated.
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Summary
Keywords
anaerobic digestion, biohydrogen, biomethane, dark fermentation, metabolic pathways, microorganisms
Citation
Frontiers Production Office (2026) Correction: Can bio-H2 compete with bio-CH4-unequal chances of anaerobic digestion metabolic pathways. Front. Microbiol. 17:1963866. doi: 10.3389/fmicb.2026.1963866
Received
10 August 2026
Accepted
10 August 2026
Published
09 September 2026
Approved by
Frontiers Editorial Office, Frontiers Media SA, Switzerland
Volume
17 - 2026
Updates
Copyright
© 2026 Frontiers Production Office.
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