Abstract
Conductive materials can serve as biocatalysts during direct interspecies electron transfer for methanogenesis in anaerobic reactors. However, the mechanism promoting direct interspecies electron transfer in anaerobic reactors, particularly under environments in which diverse substrates and microorganisms coexist, remains to be elucidated from a scientific or an engineering point of view. Currently, many molecular microbiological approaches are employed to understand the fundamentals of this phenomenon. Here, the direct interspecies electron transfer mechanisms and relevant microorganisms identified to date using molecular microbiological methods were critically reviewed. Moreover, molecular microbiological methods for direct interspecies electron transfer used in previous studies and important findings thus revealed were analyzed. This review will help us better understand the phenomena of direct interspecies electron transfer using conductive materials and offer a framework for future molecular microbiological studies.
Original language | English |
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Article number | 124587 |
Journal | Bioresource technology |
Volume | 322 |
DOIs | |
Publication status | Published - 2021 Feb |
Bibliographical note
Publisher Copyright:© 2020 Elsevier Ltd
Keywords
- Conductive material
- Direct interspecies electron transfer (DIET)
- Endoelectrogen
- Exoelectrogen
- Methanogenesis
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal