biostudies-literatureKhesali Aghtaei HMax Planck Institute for Dynamics of Complex Technical Systems (MPI Magdeburg)Bundesministerium für Bildung und ForschungEuropean Regional Development Fund125https://www.ebi.ac.uk/biostudies/studies/S-EPMC9670408biostudies-literatureUnknown15(1)<h4>Background</h4>Biological conversion of the surplus of renewable electricity and carbon dioxide (CO₂) from biogas plants to biomethane (CH₄) could support energy storage and strengthen the power grid. Biological methanation (BM) is linked closely to the activity of biogas-producing Bacteria and methanogenic Archaea. During reactor operations, the microbiome is often subject to various changes, e.g., substrate limitation or pH-shifts, whereby the microorganisms are challenged to adapt to the new conditions. In this study, various process parameters including pH value, CH₄ production rate, conversion yields and final gas composition were monitored for a hydrogenotrophic-adapted microbial community cultivated in a laboratory-scale BM reactor. To investigatBiotechnology for biofuels and bioproductsAdaptation of a microbial community to demand-oriented biological methanation.PMC9670408031A532B, 031A533A, 031A533B, 031A534A, 031A535A, 031A537A, 031A537B, 031A537C, 031A537D, 031A538A, 031L0103Reichl UPuttker SBenndorf DSczyrba AMaus IHeyer RKhesali Aghtaei HHuang LfalseAdaptation of a microbial community to demand-oriented biological methanation.<h4>Background</h4>Biological conversion of the surplus of renewable electricity and carbon dioxide (CO₂) from biogas plants to biomethane (CH₄) could support energy storage and strengthen the power grid. Biological methanation (BM) is linked closely to the activity of biogas-producing Bacteria and methanogenic Archaea. During reactor operations, the microbiome is often subject to various changes, e.g., substrate limitation or pH-shifts, whereby the microorganisms are challenged to adapt to the new conditions. In this study, various process parameters including pH value, CH₄ production rate, conversion yields and final gas composition were monitored for a hydrogenotrophic-adapted microbial community cultivated in a laboratory-scale BM reactor. To investigat2022-01-01T00:00:00Z2022 Nov2026-06-05T05:58:26.729Z2025-04-19T10:41:04.491ZS-EPMC96704083638458210.1186/s13068-022-02207-w