ReviewBiotechnology for biofuels and bioproducts2026
Microaerobic dark fermentation by purple bacteria as an emerging perspective for biohydrogen production-a review.
Review in Biotechnology for biofuels and bioproducts, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
While in recent years, a lot of research regarding microbial dark fermentation for biohydrogen production has been carried out focusing on improving well-established processes, this review aims to draw attention to the discovery of a new method of process control, i.e., microaerobic dark fermentation in purple non-sulfur bacteria. This new subsegment of research tries to rethink efficiencies of biohydrogen production and substrate conversion based on an increasingly comprehensive understanding of metabolic pathways, particularly in the area of interplay between aerobic and anaerobic metabolism and the control of this state. By combining hydrogen production through dark fermentation and partially activated photofermentation by a partially active nitrogenase (~ 12%), microaerobic fermentation has the potential to increase hydrogen efficiency. At the same time, it allows to maintain advantages of facultative aerobes, such as high-cell densities and growth rates. Studies show that very high yields of up to 8-12 mol H
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