Results 71 to 80 of about 3,891 (199)

Effect of ammonium concentration on methane oxidation and CO2 removal in an anaerobic biotrickling filter treating synthetic landfill gas and leachate

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 8, Page 1632-1642, August 2026.
Abstract BACKGROUND Landfill gas (LFG) and leachate are commonly treated separately through energy‐intensive processes. This study evaluated the integration of both streams in an anaerobic biotrickling filter (BTF) to achieve simultaneous methane (CH4) and carbon dioxide (CO2) removal coupled with ammonium (NH4+) transformation, and how the microbial ...
Cecilia Lizeth Alvarez‐Guzmán, Karla María Muñoz‐Páez, Alejandro Vargas, Idania Valdez‐Vazquez   +3 more
wiley   +1 more source

Uncoupling by Acetic Acid Limits Growth of and Acetogenesis by Clostridium thermoaceticum [PDF]

Applied and Environmental Microbiology, 1984
When cells of the anaerobic thermophile Clostridium thermoaceticum grow in batch culture and homoferment glucose to acetic acid, the pH of the medium decreases until growth and then acid production cease, at about pH 5. We postulated that the end product of fermentation limits growth by acting as an uncoupling agent.
J J, Baronofsky, W J, Schreurs, E R, Kashket   +2 more
openaire   +2 more sources

Chemistry (Organic Chemistry, Paper -VII, Module: 7) [e-SLM]

, 2019
Acetogenesis ...

core   +1 more source

The effect of pretreatment on VFA production from tofu and tempeh wastewater through anaerobic digestion batch

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 4, Page 1743-1761, July/August 2026.
Abstract Tofu and tempeh, derived from soybeans, are widely consumed for their nutritional value and high protein content. However, the production of these foods generates nutrient‐rich wastewater that poses environmental challenges while offering opportunities for valorization.
Lydia Mawar Ningsih, Mohammad J. Taherzadeh, Steven Wainaina, Hynek Roubík   +3 more
wiley   +1 more source

Percent abundance of sequences in the metagenomes with similarities to genes from various respiratory pathways.

, 2013
Anaerobic respiratory reductases include the SEED subsystem of the same name plus other anaerobic respiration-related genes (denitrification, sulfate reduction, reductive dechlorination, tetrathionate respiration, TMAO reduction and decaheme cytochromes).
David A. Lipson (417142), Archana Srinivas (417144), Shashank Sathe (417146), John Matthew Haggerty (417143), Theodore K. Raab (417145), Elizabeth A. Dinsdale (41622)   +5 more
core   +1 more source

Acetate Shock Loads Enhance CO Uptake Rates of Anaerobic Microbiomes

Microbial Biotechnology
Pyrolysis of lignocellulosic biomass commonly produces syngas, a mixture of gases such as CO, CO2 and H2, as well as an aqueous solution generally rich in organic acids such as acetate.
Alberto Robazza, Ada Raya i Garcia, Flávio C. F. Baleeiro, Sabine Kleinsteuber, Anke Neumann   +4 more
doaj   +1 more source

Genome-scale analysis of syngas fermenting acetogenic bacteria reveals the translational regulation for its autotrophic growth

BMC Genomics, 2018
Background Acetogenic bacteria constitute promising biocatalysts for the conversion of CO2/H2 or synthesis gas (H2/CO/CO2) into biofuels and value-added biochemicals.
Yoseb Song, Jongoh Shin, Sangrak Jin, Jung-Kul Lee, Dong Rip Kim, Sun Chang Kim, Suhyung Cho, Byung-Kwan Cho   +7 more
doaj   +1 more source

Biophysical and biochemical studies support TP0094 as a phosphotransacetylase in an acetogenic energy-conservation pathway in Treponema pallidum.

PLoS ONE, 2023
The mechanisms of energy generation and carbon-source utilization in the syphilis spirochete Treponema pallidum have remained enigmatic despite complete genomic sequence information. Whereas the bacterium harbors enzymes for glycolysis, the apparatus for
Chad A Brautigam, Ranjit K Deka, Shih-Chia Tso, Wei Z Liu, Michael V Norgard   +4 more
doaj   +1 more source

A Comprehensive Review of the Key Factors Affecting Biogas Production From Anaerobic Digestion of Organic Waste

CleanMat, Volume 3, Issue 2, Page 74-98, June 2026.
Efficient conversion of organic waste to biogas depends on the coordinated optimization of feedstock composition, pretreatment, operational parameters, reactor design, and microbial community dynamics. This review highlights how these interacting factors improve methane yield and process stability, advancing anaerobic digestion as a practical pathway ...
Ahmed Alengebawy, Yi Ran, Sara Taha Abdelkhalek, Tarek Mahrous, Ahmed Ragheb, Mohamed Samer, Ping Ai   +6 more
wiley   +1 more source

Homoacetogenesis and microbial community composition are shaped by pH and total sulfide concentration

Microbial Biotechnology, 2020
Summary Biological CO2 sequestration through acetogenesis with H2 as electron donor is a promising technology to reduce greenhouse gas emissions. Today, a major issue is the presence of impurities such as hydrogen sulfide (H2S) in CO2 containing gases ...
Eleftheria Ntagia, Ioanna Chatzigiannidou, Adam J. Williamson, Jan B. A. Arends, Korneel Rabaey   +4 more
doaj   +1 more source