Microbial conversion of carbon dioxide into premium medium-chain fatty acids: the progress, challenges, and prospects

npj Materials Sustainability, Journal Year: 2024, Volume and Issue: 2(1)

Published: March 26, 2024

Abstract The conversion of carbon dioxide to medium-chain fatty acids (CO 2 -to-MCFAs) through microbial processes represents a valuable technology for sequestering and exploiting CO , generating superior bio-chemicals from the primary contributor greenhouse effect. However, comprehensive overview generalization -to-MCFAs are presently deficient. Based on this, present review systematically summarizes research progress, explicates process mechanisms, analyses key challenges possible solutions, anticipates forthcoming perspectives priorities first time. We proposed two original strategies, namely synchronous strategy integrated strategy, current into -to-MCFAs. concurrently achieves hydrogen (H ) assimilation, as well MCFAs production, by employing reactor that co-cultivates predominant H /CO -utilizing microorganisms chain elongation microorganisms. approaches involve -to-precursors (i.e., acetate ethanol) subsequent precursors-to-MCFAs, achieved use bioreactors separately cultivating Mechanistic insights reveal predominantly encompasses processes: assimilation precursor precursors MCFAs, Wood-Ljungdahl pathway two-round elongation, respectively. solutions underscore imperative enhance efficiency economy shed light metabolic mechanisms. Furthermore, in order improve application potential -to-MCFAs, future priorities, e.g. exploitation functional pure bacteria, screening multi-omics analysis, genetic modification enhancement, enhancement bioreactor stability, specific MCFA development coupled purification economic benefits ecological environmental risks, prospected. This work is expected offer thorough understanding guide inspire researchers address critical in-depth propel

Language: Английский

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Enhancement of caproate production from food waste using biochar produced from agricultural wastes: A microbial perspective

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 221, P. 119401 - 119401

Published: Aug. 9, 2024

Language: Английский

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Volatile Fatty Acid Production vs. Methane and Hydrogen in Anaerobic Digestion

Fermentation, Journal Year: 2025, Volume and Issue: 11(4), P. 172 - 172

Published: March 26, 2025

Volatile fatty acids (VFAs) are inevitable intermediates of biogas production during the anaerobic digestion organic matter. The excessive accumulation VFAs leads to a pH drop and strong inhibition methanogenesis. On other hand, useful commodities with different applications, their fermentative may compete traditional methods based on oil derivatives. fermentation have commonalities biorefinery concept. present review considers VFA together competitive simultaneous hydrogen production. Methods enhanced volatile presented, showing option integrated processes product removal energy from obtained biogas. basis review, following conclusion can be drawn. (formic, acetic, propionic, butyric ones) various applications. That is why targeted desired rate shift aims toward instead release. combined release make overall process self-consistent, sufficient maintain target using for heating digestor. maintenance optimum concentrations accomplished by broth, thus integrating recovery operation conditions in digester. substrate preparation operating (organic loading hydraulic retention time) crucial importance successful process.

Language: Английский

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An integrated review on the role of different biocatalysts, process parameters, bioreactor technologies and data-driven predictive models for upgrading biogas

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 384, P. 125508 - 125508

Published: May 5, 2025

Language: Английский

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Anaerobic treatment of livestock wastewater using a multistage anaerobic reactor (MAR) under low temperature and tetracycline stress

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163475 - 163475

Published: May 1, 2025

Language: Английский

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Bioelectrochemical protein production valorising NH3-rich pig manure-derived wastewater and CO2 from anaerobic digestion

Renewable Energy, Journal Year: 2024, Volume and Issue: 229, P. 120761 - 120761

Published: June 4, 2024

Microbial electrosynthesis (MES) cell use is an innovative approach for single-cell proteins (SCP) production. Coupling MES with the valorization of CO2 from anaerobic digestion and nitrogen livestock effluents has beneficial environmental effects, reducing greenhouse gas emissions overloading. In addition, power needed can come surplus renewable energy. this study, a biochar-functionalized cathode was tested at varying polarizations, i.e. non polarized, -0.6 V -1.0 vs Ag/AgCl, biogas-derived recovered ammonia pig slurry supplied. Negative polarization switched microbial community heterotrophic, typical unpolarized MES, to mix both heterotrophic autotrophic/electrotrophic communities mainly V. The more negative allowed highest N capture, 39 ± 2 % supplied CO2, 6.7 0.8 N. biomass characterization indicated protein content on dry matter basis 33.1 1.3 (unpolarized), 43.2 0.6 (-0.6 V) 69.1 1.0 (-1.0 V). amino acids profiles investigated showed high nutritional value produced biomass, not far those conventional sources used producing feed/food.

Language: Английский

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Biochar confers significant microbial resistance to ammonia toxicity in n-caproic acid production

Water Research, Journal Year: 2024, Volume and Issue: 266, P. 122367 - 122367

Published: Sept. 1, 2024

Language: Английский

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Enhancing medium-chain fatty acids production via alkyl polyglucose modulation of electron acceptor generation, microbial community and metabolic traits in anaerobic fermentation of waste activated sludge

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156041 - 156041

Published: Sept. 1, 2024

Language: Английский

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Bioelectrochemical Protein Production Valorizing Nh3-Rich Pig Manure-Derived Wastewater and Co2 from Anaerobic Digestion

Published: Jan. 1, 2024

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Language: Английский

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Bioelectrochemical Protein Production Valorizing Nh3-Rich Pig Manure-Derived Wastewater and Co2 from Anaerobic Digestion

Published: Jan. 1, 2024

Microbial electrosynthesis (MES) cell use is an innovative approach for single-cell proteins (SCP) production. Coupling MES with the valorization of CO2 from anaerobic digestion and nitrogen livestock effluents has beneficial environmental effects, reducing greenhouse gas emissions overloading. In addition, power needed can come surplus renewable energy. this study, a biochar-functionalized cathode was tested at varying polarizations, i.e. non polarized, -0.6 V -1.0 vs Ag/AgCl, biogas-derived recovered ammonia pig slurry supplied. Negative polarization switched microbial community heterotrophic, typical unpolarized MES, to mix both heterotrophic autotrophic/electrotrophic communities mainly V. The more negative allowed highest N capture, 39 ± 2 % supplied CO2, 6.7 0.8 N. biomass characterization indicated protein content on dry matter basis 33.1 1.3 (unpolarized), 43.2 0.6 (-0.6 V) 69.1 1.0 (-1.0 V). amino acids profiles investigated showed high nutritional value produced biomass, not far those conventional sources used producing feed/food.

Language: Английский

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