Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41598-017-11826-5
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dc.titleMetagenomic insight into the microbial networks and metabolic mechanism in anaerobic digesters for food waste by incorporating activated carbon
dc.contributor.authorZhang, J
dc.contributor.authorMao, L
dc.contributor.authorZhang, L
dc.contributor.authorLoh, K.-C
dc.contributor.authorDai, Y
dc.contributor.authorTong, Y.W
dc.date.accessioned2020-09-09T04:50:39Z
dc.date.available2020-09-09T04:50:39Z
dc.date.issued2017
dc.identifier.citationZhang, J, Mao, L, Zhang, L, Loh, K.-C, Dai, Y, Tong, Y.W (2017). Metagenomic insight into the microbial networks and metabolic mechanism in anaerobic digesters for food waste by incorporating activated carbon. Scientific Reports 7 (1) : 11293. ScholarBank@NUS Repository. https://doi.org/10.1038/s41598-017-11826-5
dc.identifier.issn20452322
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/175170
dc.description.abstractPowdered activated carbon (AC) is commonly used as an effective additive to enhance anaerobic digestion (AD), but little is known about how the metabolic pathways resulting from adding AC change the microbial association network and enhance food waste treatment. In this work, the use of AC in an anaerobic digestion system for food waste was explored. Using bioinformatics analysis, taxonomic trees and the KEGG pathway analysis, changes in microbial network and biometabolic pathways were tracked. The overall effect of these changes were used to explain and validate improved digestion performance. The results showed that AC accelerated the decomposition of edible oil in food waste, enhancing the conversion of food waste to methane with the optimized dosage of 12 g AC per reactor. Specifically, when AC was added, the proponoate metabolic pathway that converts propanoic acid to acetic acid became more prominent, as measured by 16S rRNA in the microbial community. The other two metabolic pathways, Lipid Metabolism and Methane Metabolism, were also enhanced. Bioinformatics analysis revealed that AC promoted the proliferation of syntrophic microorganisms such as Methanosaeta and Geobacter, forming a highly intensive syntrophic microbial network. © 2017 The Author(s).
dc.sourceUnpaywall 20200831
dc.subjectmethane
dc.subjectanaerobic growth
dc.subjectbiology
dc.subjectbiosynthesis
dc.subjectenergy metabolism
dc.subjectfermentation
dc.subjectfood
dc.subjectmetabolism
dc.subjectmetagenome
dc.subjectmetagenomics
dc.subjectmicroflora
dc.subjectprocedures
dc.subjectsewage
dc.subjectAnaerobiosis
dc.subjectComputational Biology
dc.subjectEnergy Metabolism
dc.subjectFermentation
dc.subjectFood
dc.subjectMetabolic Networks and Pathways
dc.subjectMetagenome
dc.subjectMetagenomics
dc.subjectMethane
dc.subjectMicrobiota
dc.subjectWaste Disposal, Fluid
dc.typeArticle
dc.contributor.departmentNUS ENVIRONMENTAL RESEARCH INSTITUTE
dc.contributor.departmentDEPT OF CHEMICAL & BIOMOLECULAR ENGG
dc.description.doi10.1038/s41598-017-11826-5
dc.description.sourcetitleScientific Reports
dc.description.volume7
dc.description.issue1
dc.description.page11293
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