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Syntrophy and Interspecies Electron Transfer in Methanogenic Microbial Communities
Microbiology, 2020Anaerobic digestion of municipal and other organic waste is a microbial process for conversion of complex organic substances to biogas (a renewable energy source) comprising a mixture of methane and CO2, and a stabilized sludge, which may be used as an organic fertilizer.
A. N. Nozhevnikova +5 more
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Direct interspecies electron transfer mechanism in enhanced methanogenesis: A mini-review
Bioresource Technology, 2021The role of direct interspecies electron transfer (DIET) on enhancement of methanogenesis has been studied. This mini-review updated the current researches on the potential role of DIET on enhanced performance for anaerobic digestion of organic substrates with effective strategies implemented.
Wei, Wang, Duu-Jong, Lee
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Hardwiring microbes via direct interspecies electron transfer: mechanisms and applications
Environmental Science: Processes & Impacts, 2016Direct interspecies electron transfer (DIET) has important implications for the design and operation of biological treatment processes.
Qiwen, Cheng, Douglas F, Call
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Challenges in engineering direct interspecies electron transfer for enhanced methanogenesis
Renewable and Sustainable Energy Reviews, 2023Interspecies electron transfer (IET) between fatty acid-oxidizing bacteria and hydrogenotrophic methanogens is key to stable and efficient methanogenesis in the anaerobic digestion (AD) process. Recently discovered direct IET (DIET) enables energetically and kinetically advantageous methanogenesis and facilitating cell-to-cell electrical connections ...
Gahyun Baek +4 more
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Bioresource Technology
Ethanol pre-fermentation of food waste effectively alleviates acidification; however, its effects on interspecies electron transfer remain unknown. This study configured the feed according to COD ratios of ethanol: sodium acetate: sodium propionate: sodium butyrate of 5:2:1.5:1.5 (ethanol-type anaerobic digestion) and 0:5:2.5:2.5 (control), and ...
Shuang, Zhang +5 more
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Ethanol pre-fermentation of food waste effectively alleviates acidification; however, its effects on interspecies electron transfer remain unknown. This study configured the feed according to COD ratios of ethanol: sodium acetate: sodium propionate: sodium butyrate of 5:2:1.5:1.5 (ethanol-type anaerobic digestion) and 0:5:2.5:2.5 (control), and ...
Shuang, Zhang +5 more
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Direct Interspecies Electron Transfer Between Archaea and Bacteria
2017Archaea and bacteria living in syntrophic consortia take advantage of the metabolic abilities of their syntrophic partners to overcome energetic barriers and break down compounds that they cannot digest by themselves. Methanogenesis and anaerobic oxidization of methane (AOM) are main processes involved in syntrophic consortia.
Cuiping Zhao, Yuchen Liu
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Different Routes for Direct Interspecies Electron Transfer with Diverse Electron-Accepting Partners
2022AbstractDirect interspecies electron transfer (DIET) may be most important in methanogenic environments, but studies to date that have examined the mechanisms for electron transfer from electron-donating partners have primarily focused on co-cultures in which fumarate was the terminal electron acceptor.
Dawn E. Holmes +5 more
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[Research advances in direct interspecies electron transfer within microbes].
Ying yong sheng tai xue bao = The journal of applied ecology, 2021Hydrogen and formic acid have been considered as the intermediate electron transporters among microbes for a long time. In recent years, however, it has been found that direct interspecies electron transfer (DIET) might be an alternative beyond hydrogen/formic acid to transfer electron among microbes.
Jian-Ying, Lan, Hai-Ming, Jiang, Xia, Li
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Bioresource Technology, 2017
Direct interspecies electron transfer (DIET) is a recently discovered microbial syntrophy where cell-to-cell electron transfer occurs between syntrophic microbial species. DIET between bacteria and methanogenic archaea in anaerobic digestion can accelerate the syntrophic conversion of various reduced organic compounds to methane.
Sajib, Barua, Bipro Ranjan, Dhar
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Direct interspecies electron transfer (DIET) is a recently discovered microbial syntrophy where cell-to-cell electron transfer occurs between syntrophic microbial species. DIET between bacteria and methanogenic archaea in anaerobic digestion can accelerate the syntrophic conversion of various reduced organic compounds to methane.
Sajib, Barua, Bipro Ranjan, Dhar
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Quorum Sensing Enhances Direct Interspecies Electron Transfer in Anaerobic Methane Production
Environmental Science & TechnologyDirect interspecies electron transfer (DIET) provides an innovative way to achieve efficient methanogenesis, and this study proposes a new approach to upregulate the DIET pathway by enhancing quorum sensing (QS). Based on long-term reactor performance, QS enhancement achieved more vigorous methanogenesis with 98.7% COD removal efficiency.
Shunan Zhao +7 more
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