title: Microbiome involved in microbial electrochemical systems (MESs): A review.
abstract: Microbial electrochemical systems (MESs) are an attracting technology for the disposal of wastewater treatment and simultaneous energy production. In MESs, at the anode microorganisms through the catalytic activity generates electrons that can be converted into electricity or other valuable chemical compounds. Microorganisms those having ability to donate and accept electrons to and from anode and cathode electrodes, respectively are recognized as 'exoelectrogens'. In the MESs, it renders an important function for its performance. In the present mini-review, we have discussed the role of microbiome including pure culture, enriched culture and mixed culture in different BESs application. The effects of operational and biological factors on microbiome development have been discussed. Further discussion about the molecular techniques for the evaluation of microbial community analysis is addressed. In addition different electrochemical techniques for extracellular electron transfer (EET) mechanism of electroactive biofilms have been discussed. This review highlights the importance of microbiome in the development of MESs, effective operational factors for exo-electrogens activities as well their key challenges and future technological aspects are also briefly discussed.
authors.affiliation: Research Institute of Biotechnology and Medical Converged Science, Dongguk University- Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea.
authors.forename: Rijuta Ganesh
authors.initials: RG
authors.lastname: Saratale
authors.affiliation: Department of Food Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea.
authors.forename: Ganesh Dattatraya
authors.initials: GD
authors.lastname: Saratale
authors.affiliation: Department of Environmental Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Republic of Korea.
authors.forename: Arivalagan
authors.initials: A
authors.lastname: Pugazhendhi
authors.affiliation: Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Dongchuan Rd. 500, Shanghai 200241, China.
authors.forename: Guangyin
authors.initials: G
authors.lastname: Zhen
authors.affiliation: Department of Environmental Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Republic of Korea.
authors.forename: Gopalakrishnan
authors.initials: G
authors.lastname: Kumar
authors.affiliation: Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, National University of Malaysia (UKM), 43600 UKM Bangi, Selangor, Malaysia.
authors.forename: Abudukeremu
authors.initials: A
authors.lastname: Kadier
authors.affiliation: Green Energy Technology Research Group, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam. Electronic address: periyasamy.sivagurunathan@tdt.edu.vn.
authors.forename: Periyasamy
authors.initials: P
authors.lastname: Sivagurunathan
mesh_terms: D001674:Bioelectric Energy Sources; D018441:Biofilms; D004560:Electricity; D055664:Electrochemical Techniques; D004566:Electrodes; D004579:Electron Transport; D006859:Hydrogen / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D064307:Microbiota; D018807:Polymorphism, Single-Stranded Conformational; D060888:Real-Time Polymerase Chain Reaction; D062065:Wastewater; D018508:Water Purification / Q000379:methods*
chemical_list: D006859:Hydrogen; D062065:Wastewater
keywords: Electrochemical impedance spectroscopy; Exoelectrogens; Microbial electrochemical systems (MESs); Microbiome; Molecular techniques; Pyrosequencing