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Microbiological surveillance of biogas plants : focusing on the acetogenic community

Singh, Abhijeet (2021). Microbiological surveillance of biogas plants : focusing on the acetogenic community. Diss. (sammanfattning/summary) Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880
ISBN 978-91-7760-702-1
eISBN 978-91-7760-703-8
[Doctoral thesis]

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Abstract

Biogas process has great potential for reducing the current dependence on fossil fuels and for climate mitigation and sustainable development. In this process organic matter is decomposed under anerobic conditions by microorganisms to form biogas and a nutrient rich biofertiliser. For adequate use of the resources invested in commercial biogas production, constant monitoring and optimisation are extremely important. The biogas microbiome has been thoroughly studied, but remains a black box in terms of the microbe identity/diversity and functions/interactions in biogas production. Among known bacterial communities, acetogenic bacteria play a critical imperative role in the biogas process, so close monitoring or surveillance of the acetogenic community is important to ensure process stability and productivity.

This thesis presents a new microbiological surveillance strategy targeting the acetogenic community in biogas reactors and describes the underlying theory, tools and application. In the strategy, a database (AcetoBase) and a bioinformatics analysis pipeline (AcetoScan), developed within this thesis, are employed for surveillance of acetogenic communities in laboratory- and industrial-scale biogas facilities. Meticulous comparison of the surveillance strategy with conventional methods demonstrated its superiority in envisioning acetogenic community structure and dynamics. Acetogenic community surveillance using the strategy showed that acetogenic communities in biogas reactors are substrate-specific, diverse and dynamic. The dynamic response of acetogenic communities imparts strength in resisting disturbance and potential to recover post-disturbance. Future use of the acetogenic community surveillance strategy can greatly improve understanding of the acetogenic communities and their utilization for biogas process stability.

Authors/Creators:Singh, Abhijeet
Title:Microbiological surveillance of biogas plants : focusing on the acetogenic community
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :2021
Number:2021:12
Number of Pages:107
Publisher:Department of Molecular Sciences, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-7760-702-1
ISBN for electronic version:978-91-7760-703-8
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Article category:Other scientific
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Other Biological Topics
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Bioinformatics and Systems Biology (methods development to be 10203)
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Other Agricultural Sciences not elsewhere specified
Keywords:AcetoBase, Acetogenesis, Acetogens, AcetoScan, Anaerobic digestion, Biogas, FTHFS, Monitoring, Surveillance, Wood-Ljungdahl pathway
URN:NBN:urn:nbn:se:slu:epsilon-p-110891
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-110891
ID Code:22699
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:05 Mar 2021 07:43
Metadata Last Modified:05 Mar 2021 15:41

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