Journal ArticleDOI
Perspectives for microbial community composition in anaerobic digestion: from abundance and activity to connectivity
Jo De Vrieze,Willy Verstraete +1 more
TLDR
A microbial community based prediction strategy for advanced process control is formulated, which results in a clear trade-off between functionally active and redundant microorganisms as primary basis for microbial community organization.Abstract:
Microbial management in anaerobic digestion is mainly focused on physically present and metabolically active species. Because of its complexity and operation near the thermodynamic equilibria, it is equally important to address functional regulation, based on spatial organisation and interspecies communication. Further establishment of the knowledge on microbial communication in anaerobic digestion through quorum sensing and nanowires is needed. Methods to detect centres of concentrated activity, related to the presence of highly active and well-connected species that take a central role in the anaerobic digestion process, have to be optimized. Bioaugmentation could serve as a crucial tool to introduce keystone species that may create or sustain such centres. Functional stability can be maintained by keeping the microbial community active. This results in a clear trade-off between functionally active and redundant microorganisms as primary basis for microbial community organization. Finally, a microbial community based prediction strategy for advanced process control is formulated.read more
Citations
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Journal ArticleDOI
Hydrothermal processing of biomass for anaerobic digestion – A review
TL;DR: In this article, a review of HP chemistry, different hydrothermal processing techniques, inhibitory compounds production mechanism in the hydrolysate, and the impact of pretreatment parameters on biological conversion efficiency in products of biotechnological interest are discussed.
Journal ArticleDOI
A year of monitoring 20 mesophilic full-scale bioreactors reveals the existence of stable but different core microbiomes in bio-waste and wastewater anaerobic digestion systems
Magdalena Calusinska,Xavier Goux,Marie Fossépré,Emilie E. L. Muller,Emilie E. L. Muller,Paul Wilmes,Philippe Delfosse +6 more
TL;DR: Characterised microbial communities in different AD systems that were monitored over a 1-year period andidences were shown to support the concept of a core community driving the AD process, whereas the vast majority of dominant microorganisms remain yet to be characterised.
Journal ArticleDOI
Inhibition of anaerobic digestion processes: Applications of molecular tools
Yamrot M. Amha,Muhammad Zohaib Anwar,Andrew Brower,Carsten S. Jacobsen,Lauren B. Stadler,Tara M. Webster,Adam L. Smith +6 more
TL;DR: This literature review of AD inhibition studies indicates that inhibitory concentrations are highly variable, likely stemming from differences in community structure or activity profile and previous exposure to inhibitors.
Journal ArticleDOI
Effect of mixing intensity on hydrolysis and acidification of sewage sludge in two-stage anaerobic digestion: Characteristics of dissolved organic matter and the key microorganisms.
TL;DR: It is shown how increasing mixing intensity to a relatively high speed can enhance the hydrolysis and acidification efficiency of SS.
Journal ArticleDOI
Advances in direct interspecies electron transfer and conductive materials: Electron flux, organic degradation and microbial interaction.
Qidong Yin,Guangxue Wu +1 more
TL;DR: This review comprehensively presents recent findings of DIET and the addition of conductive materials for methanogenesis and summarizes important results through aspects of electron flux, organic degradation, and microbial interaction.
References
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Journal ArticleDOI
The Strategy of Ecosystem Development
TL;DR: The principles of ecological succession bear importantly on the relationships between man and nature and needs to be examined as a basis for resolving man’s present environmental crisis.
Journal ArticleDOI
Quorum sensing in bacteria: the LuxR-LuxI family of cell density-responsive transcriptional regulators.
TL;DR: How the marine luminescent bacterium V. fischeri uses the LuxR and LuxI proteins for intercellular communication is reviewed and a newly discovered family of LuxRand LuxI homologs in diverse bacterial species is described.
Journal ArticleDOI
Microbial interactions: from networks to models
Karoline Faust,Jeroen Raes +1 more
TL;DR: This Review describes how metagenomics and 16S pyrosequencing techniques are opening the way towards global ecosystem network prediction and the development of ecosystem-wide dynamic models.
Journal ArticleDOI
Using network analysis to explore co-occurrence patterns in soil microbial communities
TL;DR: The potential of exploring inter-taxa correlations to gain a more integrated understanding of microbial community structure and the ecological rules guiding community assembly is demonstrated.
Journal ArticleDOI
Methanogenic archaea: ecologically relevant differences in energy conservation.
TL;DR: In methanogens with cytochromes, the first and last steps in methanogenesis from CO2 are coupled chemiosmotically, whereas in methenogens without cyto Chromes, these steps are energetically coupled by a cytoplasmic enzyme complex that mediates flavin-based electron bifurcation.