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End date: 2024 × Start date: 2020 × DDC: 570 × Has files: Yes × Subject: anaerobic digestion ×

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Now showing 1 - 4 of 4
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    Complete genome sequence of a new clostridium sp. isolated from anaerobic digestion and biomethanation
    (Washington, DC : American Society for Microbiology, 2020) Hahnke, Sarah; Abendroth, Christian; Pascual, Javier; Langer, Thomas; Ramm, Patrice; Klocke, Michael; Luschnig, Olaf; Porcar, Manuel
    Here, we present the genome sequence and annotation of the bacterial strain HV4-5-A1G, a potentially new Clostridium species. Based on its genomic data, this strain may act as a keystone microorganism in the hydrolysis of complex polymers, as well as in the different acidogenesis and acetogenesis steps during anaerobic digestion. © 2020 Hahnke et al.
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    Effect of a Profound Feedstock Change on the Structure and Performance of Biogas Microbiomes
    (Basel : MDPI AG, 2020) Klang, Johanna; Szewzyk, Ulrich; Bock, Daniel; Theuerl, Susanne
    In this study the response of biogas-producing microbiomes to a profound feedstock change was investigated. The microbiomes were adapted to the digestion of either 100% sugar beet, maize silage, or of the silages with elevated amounts of total ammonium nitrogen (TAN) by adding ammonium carbonate or animal manure. The feedstock exchange resulted in a short-range decrease or increase in the biogas yields according to the level of chemical feedstock complexity. Fifteen taxa were found in all reactors and can be considered as generalists. Thirteen taxa were detected in the reactors operated with low TAN and six in the reactors with high TAN concentration. Taxa assigned to the phylum Bacteroidetes and to the order Spirochaetales increased with the exchange to sugar beet silage, indicating an affinity to easily degradable compounds. The recorded TAN-sensitive taxa (phylum Cloacimonetes) showed no specific affinity to maize or sugar beet silage. The archaeal community remained unchanged. The reported findings showed a smooth adaptation of the microbial communities, without a profound negative impact on the overall biogas production indicating that the two feedstocks, sugar beet and maize silage, potentially do not contain chemical compounds that are difficult to handle during anaerobic digestion.
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    Complete genome sequence of a new Bacteroidaceae bacterium isolated from anaerobic biomass digestion
    (Washington, DC : American Society for Microbiology, 2020) Hahnke, Sarah; Abendroth, Christian; Pascual, Javier; Langer, Thomas; Codoñer, Francisco M.; Ramm, Patrice; Klocke, Michael; Luschnig, Olaf; Porcare, Manuel
    Here, we present the genome sequence and annotation of HV4-6-C5C, a bacterial strain isolated from a mesophilic two-stage laboratory-scale leach bed biogas reactor system. Strain HV4-6-C5C may represent a new genus of the family Bacteroidaceae and may have a key role in acidogenesis and acetogenesis steps during anaerobic biomass digestion. © 2019 Hahnke et al.
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    Draft Genome Sequence of a New Oscillospiraceae Bacterium Isolated from Anaerobic Digestion of Biomass
    (Washington, DC : American Society for Microbiology, 2020) Pascual, Javier; Hahnke, Sarah; Abendroth, Christian; Langer, Thomas; Ramm, Patrice; Klocke, Michael; Luschnig, Olaf; Porcar, Manuel
    Here, we present the genome sequence and annotation of the novel bacterial strain HV4-5-C5C, which may represent a new genus within the family Oscillospiraceae (order Eubacteriales). This strain is a potential keystone species in the hydrolysis of complex polymers during anaerobic digestion of biomass. © 2020 Pascual et al.