Enhancement strategies for the microbial protein production of nitrogen-fixing hydrogen-oxidizing bacterial community
Wang, H.
Show abstract
The feasibility and superiority of utilizing nitrogen-fixing hydrogen-oxidizing bacteria (NF-HOB) for microbial protein (MP) production have been proposed. This study simulated air as the source of nitrogen and oxygen and enhanced production efficiency by employing key strategies, including continuous gas supply, selecting a higher hydrogen-to-oxygen ratio, designing initial community structures and domestication, and exploring appropriate hydraulic retention times (HRT) in continuous culture. The results demonstrated that sequencing batch culture achieved an MP titer of 0.98 g/L, with N2 fixation efficiency surpassing natural nodules by two orders of magnitude at 1.6 mg N2 per g dry biomass per hour. Under an HRT of 48 hours, MP volumetric productivity reached 2.297 mg/(L{middle dot}h), accompanied by a maximum biomass yield of 0.11 g CDW/g COD-H2. The high abundance of nitrogenase may provide crucial functional support, enabling the NF-HOB community to exhibit potential beyond previous understanding.
Matching journals
The top 5 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Lactate production from lactose-rich wastewater: A comparative study on reactor configurations to maximize conversion rates and efficiencies 97%
- Denitrification kinetics indicates nitrous oxide uptake is unaffected by electron competition in Accumulibacter 96%
- Triangulation of microbial fingerprinting in anaerobic digestion reveals consistent fingerprinting profiles 96%
Similar papers in this journal
- An open-source multiple-bioreactor system for replicable gas-fermentation experiments: Nitrate feed results in stochastic inhibition events, but improves ethanol production of Clostridium ljungdahlii with CO2 and H2 96%
- Thiocyanate and organic carbon inputs drive convergent selection for specific autotrophic Afipia and Thiobacillus strains within complex microbiomes 95%
- Isolation, identification and selection of bacteria with the proof-of-concept for bioaugmentation of whitewater from woodfree paper mills 94%
Similar papers in this journal
- Resource Recovery from Wastewater By Directing Microbial Metabolism Toward Production of Value-added Biochemicals 96%
- Integrating independent microbial studies to build predictive models of anaerobic digestion inhibition by ammonia and phenol 94%
- Sustained Isobutene Production by Synechocystis sp. PCC 6803 Entrapped in Polyvinyl Alcohol Hydrogel Beads 94%
Similar papers in this journal
- The bi-directional extracellular electron transfer process aids iron cycling by Geoalkalibacter halelectricus in a highly saline-alkaline condition 96%
- Amplicon-guided isolation and cultivation of previously uncultured microbial species from activated sludge 94%
- Physiological characterization of nitrate ammonifying bacteria isolated from rice paddy soils via a newly developed high-throughput screening method 94%
Similar papers in this journal
- Metabolic Segregation and Functional Gene Clusters in Anaerobic Digestion Consortia 95%
- Time series metagenomic sampling of the Thermopyles, Greece, geothermal springs reveals stable microbial communities dominated by novel sulfur-oxidizing chemoautotrophs 95%
- Tree phyllospheres are a habitat for diverse populations of CO-oxidising bacteria 93%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.