Knowledge Agora

Title	Electro-cultivation of hydrogen-oxidizing bacteria to accumulate ammonium and carbon dioxide into protein-rich biomass
ID_Doc	6460
Authors	Pous, N; Balaguer, MD; Matassa, S; Chiluiza-Ramos, P; Bañeras, L; Puig, S
Title	Electro-cultivation of hydrogen-oxidizing bacteria to accumulate ammonium and carbon dioxide into protein-rich biomass
Year	2022
Published
Abstract	Hydrogen-oxidizing bacteria (HOBs) are prime candidates for the sustainable production of microbial protein because of their high nutritional value and simple metabolic requirements, which could allow a simple resource recycling of NH4+and CO2 into a valuable product. The modality of hydrogen production/supply to HOBs represents a challenge. In this work, bioelectrochemical hydrogen and oxygen productions were coupled with HOBs cultivation in the same reactor. Using this approach, the protein content was 59 +/- 8% with Hydro-genophaga and Xanthobacter as the most abundant HOBs. Biomass concentration was found to be dependent of the current density with bulk liquid biomass increasing between 101 and 124 mg TSS & sdot;L1 for an increase of 0.1 mA & sdot;cm2. Electrodes directly immersed in the bioreactor promoted biofilm formation on the electrode surface, which could become an attractive alternative for biomass harvesting. The results of this work establish a novel proof-of-concept for bio-electro production of microbial protein.
PDF	https://doi.org/10.1016/j.biteb.2022.101010

Similar Articles

ID	Score	Article
29349		Jensen, LS; Kaul, C; Juncker, NB; Thomsen, MH; Chaturvedi, T Biohydrogen Production in Microbial Electrolysis Cells Utilizing Organic Residue Feedstock: A Review(2022)Energies, 15.0, 22
6627		Pous, N; Balaguer, MD; Chiluiza-Ramos, P; Rovira-Alsina, L; Bañeras, L; Puig, S Electricity-driven microbial protein production: Effect of current density on biomass growth and nitrogen assimilation(2023)Journal Of Environmental Chemical Engineering, 11, 6
10117		Quraishi, M; Wani, K; Pandit, S; Gupta, PK; Rai, AK; Lahiri, D; Jadhav, DA; Ray, RR; Jung, SP; Thakur, VK; Prasad, R Valorisation of CO₂ into Value-Added Products via Microbial Electrosynthesis (MES) and Electro-Fermentation Technology(2021)Fermentation-Basel, 7.0, 4
19755		Koul, Y; Devda, V; Varjani, S; Guo, WS; Ngo, HH; Taherzadeh, MJ; Chang, JS; Wong, JWC; Bilal, M; Kim, SH; Bui, XT; Parra-Saldívar, R Microbial electrolysis: a promising approach for treatment and resource recovery from industrial wastewater(2022)Bioengineered, 13.0, 4
17258		Nenov, V; Atanasova, L; Yemendzhiev, H; Koleva, R Microbial Electrolysis Cell Exergy Evaluation(2024)Processes, 12, 2
6865		Cano, V; Nolasco, MA; Kurt, H; Long, CH; Cano, J; Nunes, SC; Chandran, K Comparative assessment of energy generation from ammonia oxidation by different functional bacterial communities(2023)
24700		Anjum, S; Aslam, S; Hussain, N; Bilal, M; Boczkaj, G; Smulek, W; Jesionowski, T; Iqbal, HMN Bioreactors and biophoton-driven biohydrogen production strategies(2023)International Journal Of Hydrogen Energy, 48, 55
26305		Salar-García, MJ; Ortiz-Martínez, VM; Sánchez-Segado, S; Sánchez, RV; López, AS; Blanco, LJL; Godínez-Seoane, C Sustainable Production of Biofuels and Biochemicals via Electro-Fermentation Technology(2024)Molecules, 29, 4
18281		Koleva, R; Stankulov, T; Boukoureshtlieva, R; Yemendzhiev, H; Momchilov, A; Nenov, V Alternative Biological Process for Livestock Manure Utilization and Energy Production Using Microbial Fuel Cells(2022)Journal Of The Electrochemical Society, 169.0, 3
13932		Mukherjee, A; Zaveri, P; Patel, R; Shah, MT; Munshi, NS Optimization of microbial fuel cell process using a novel consortium for aromatic hydrocarbon bioremediation and bioelectricity generation(2021)