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Enhanced direct interspecies electron transfer with transition metal oxide accelerants in anaerobic digestion

Bioresource Technology, 2021
Transition metal compounds have been widely used to enhance the anaerobic digestion (AD) performance, while the role of transition metal compounds in enhancing AD performance remains unclarified. In this work, the function of transition metal oxide accelerants (tantalum oxide, niobium oxide, hafnium oxide, and tungsten oxide) in enhanced AD systems was
Sining, Yun   +6 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, 2021
Hydrogen 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
openaire   +1 more source

Direct Interspecies Electron Transfer Between Archaea and Bacteria

2017
Archaea 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
openaire   +1 more source

Advances towards understanding and engineering direct interspecies electron transfer in anaerobic digestion

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
openaire   +2 more sources

Ethanol-type anaerobic digestion enhanced methanogenic performance by stimulating direct interspecies electron transfer and interspecies hydrogen transfer

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
openaire   +2 more sources

Quorum Sensing Enhances Direct Interspecies Electron Transfer in Anaerobic Methane Production

Environmental Science & Technology
Direct 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
openaire   +2 more sources

Direct interspecies electron transfer accelerates syntrophic oxidation of butyrate in paddy soil enrichments

Environmental Microbiology, 2014
Summary Syntrophic interaction occurs during anaerobic fermentation of organic substances forming methane as the final product. H 2 and formate are known to serve as the electron carriers in this process.
Huijuan, Li   +5 more
openaire   +2 more sources

Direct interspecies electron transfer via conductive materials: A perspective for anaerobic digestion applications

Bioresource Technology, 2018
Anaerobic digestion (AD) is a microbial process that produces renewable energy in the form of methane by treating organic waste and high-strength wastewater. Recent studies have demonstrated that conductive materials can promote direct interspecies electron transfer (DIET) between exoelectrogenic bacteria and methanogenic archaea.
Jeong-Hoon, Park   +3 more
openaire   +2 more sources

Electrochemical evidence for direct interspecies electron transfer between Geobacter sulfurreducens and Prosthecochloris aestuarii

Bioelectrochemistry, 2019
The syntrophic photosynthesis via direct interspecies electron transfer (DIET) between Geobacter sulfurreducens and Prosthecochloris aestuarii has opened a new paradigm of microbial phototrophy. However, it is still unknown whether this photosynthetic DIET can be mediated by an electrical conductor. Here we report first the photosynthetic DIET in a two-
Lingyan, Huang   +4 more
openaire   +2 more sources

Unnatural Direct Interspecies Electron Transfer Enabled by Living Cell‐Cell Click Chemistry

Angewandte Chemie International Edition
AbstractDirect interspecies electron transfer (DIET) is essential for maintaining the function and stability of anaerobic microbial consortia. However, only limited natural DIET modes have been identified and DIET engineering remains highly challenging.
Yi‐Cheng Zhao   +5 more
openaire   +2 more sources

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