ArticleWorld journal of microbiology & biotechnology2025
Towards standardized microbial hydrogen consumption testing in the subsurface: harmonized field sampling and enrichment approaches.
Article in World journal of microbiology & biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Microbial-geochemical Interactions in Underground Reservoirs: Implications for Hydrogen Storage.Microbial ecology · 2026Article
- Hydrogen competition between a gas reservoir community indicates available CO2 as main limiting factor.FEMS microbiology letters · 2026Article
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Authors and funding
11 authors.
Funding
Abstract
Hydrogen (H₂) will play a crucial role in Europe's green energy transition, necessitating efficient storage solutions such as underground storage in salt caverns or porous media. However, the potential microbial H₂ consumption in these subsurface environments poses risks to storage stability and safety, and its magnitude remains relatively unexplored. Within the HyLife-CETP project, we developed a brine sampling protocol for the field operators and tested a standardized laboratory procedure for estimating microbial hydrogen consumption rates in these original brine samples, combining precise gas, chemical, and genetic analyses. Four labs tested and compared the developed enrichment protocol in a round-robin-like test using artificial brine and the hydrogen-consuming, sulfate-reducer Oleidesulfovibrio alaskensis as a reference strain. This test revealed consistent trends in microbial hydrogen consumption and corresponding pH increase across labs, indicating that the developed protocol effectively captures the overall microbial activity. However, inter-laboratory variability in the reported H
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