ArticleMicrobial biotechnology2014
Spatial and temporal variations of microbial community in a mixed plug-flow loop reactor fed with dairy manure.
Article in Microbial biotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Interactions betweenJournal of animal science and technology · 2023Article
- Sequential fungal pretreatment of unsterilized Miscanthus: changes in composition, cellulose digestibility and microbial communities.Applied microbiology and biotechnology · 2022Article
- Dynamics of Clostridium genus and hard-cheese spoiling Clostridium species in anaerobic digesters treating agricultural biomass.AMB Express · 2020Article
- Microbial community composition and diversity in rice straw digestion bioreactors with and without dairy manure.Applied microbiology and biotechnology · 2018Article
- Taxonomy of anaerobic digestion microbiome reveals biases associated with the applied high throughput sequencing strategies.Scientific reports · 2018Article
- Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production.Frontiers in microbiology · 2018Article
- 16S rRNA analysis of diversity of manure microbial community in dairy farm environment.PloS one · 2018Article
- Stressor exposure has prolonged effects on colonic microbial community structure in Citrobacter rodentium-challenged mice.Scientific reports · 2017Article
- Intestinal Microbiota of Broiler Chickens As Affected by Litter Management Regimens.Frontiers in microbiology · 2016Article
- A metagenomic study of the microbial communities in four parallel biogas reactors.Biotechnology for biofuels · 2014Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mixed plug-flow loop reactor (MPFLR) has been widely adopted by the US dairy farms to convert cattle manure to biogas. However, the microbiome in MPFLR digesters remains unexplored. In this study, the microbiome in a MPFLR digester operated on a mega-dairy farm was examined thrice over a 2 month period. Within 23 days of retention time, 55-70% of total manure solid was digested. Except for a few minor volatile fatty acids (VFAs), total VFA concentration and pH remained similar along the course of the digester and over time. Metagenomic analysis showed that although with some temporal variations, the bacterial community was rather stable spatially in the digester. The methanogenic community was also stable both spatially and temporally in the digester. Among methanogens, genus Methanosaeta dominated in the digester. Quantitative polymerase chain reaction (qPCR) analysis and metagenomic analysis yielded different relative abundance of individual genera of methanogens, especially for Methanobacterium, which was predominant based on qPCR analysis but undetectable by metagenomics. Collectively, the results showed that only small microbial and chemical gradients existed within the digester, and the digestion process occurred similarly throughout the MPFLR digester. The findings of this study may help improve the operation and design of this type of manure digesters.
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