Results 91 to 100 of about 35,057 (212)

Forage Level and Methane Inhibitor Effects on In Vitro Fermentation Products Using Forage Rape or Ryegrass as Substrates

New Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Dietary approaches that decrease ruminal pH may be combined with anti‐methanogenic feed additives that prevent methane formation and consequently increase the dissolved hydrogen concentration. To evaluate the effect of pH and the effect of dissolved hydrogen concentration, two forages (forage rape and ryegrass) were incubated in vitro at two forage ...
Maria M. Della Rosa, Stefan Muetzel, Peter H. Janssen, David Pacheco, Arjan Jonker   +4 more
wiley   +1 more source

Numerical model estimation of biomethane production using an anaerobic CSTR: model formulation, parameter estimation and uncertainty/sensitivity analysis [PDF]

, 2018
Global climate change is becoming of increasing concern. Transportation makes up a large part of carbon gasses, which affects climate change and air quality.
Yazidi, Hatem, Bevan, Geraint, Thanikal, Joseph V., Pahl, Ole, Hunter, Colin   +4 more
core  

User-friendly mathematical model for the design of sulfate reducing H2/CO2 fed bioreactors [PDF]

, 2009
The paper presents three steady-state mathematical models for the design of H2/CO2 fed gas-lift reactors aimed at biological sulfate reduction to remove sulfate from wastewater. Models 1A and 1B are based on heterotrophic sulfate reducing bacteria (HSRB),
G. Esposito, P. Lens, PIROZZI, FRANCESCO
core   +1 more source

Mitigating VFA accumulation in hydrogen‐assisted anaerobic digestion through MEC integration

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 4, Page 915-924, April 2026.
Abstract BACKGROUND Biological hydrogenotrophic methanization is a promising method to improve biogas quality in anaerobic digestion systems. However, hydrogen‐assisted anaerobic digesters (AD‐H2) are prone to volatile fatty acid (VFA) accumulation and process instability.
Afrooz Bayat, Ricardo Bello‐Mendoza
wiley   +1 more source

Investigation and manipulation of metabolically active methanogen community composition during rumen development in black goats

Scientific Reports, 2017
This study was performed to investigate the initial colonization of metabolically active methanogens and subsequent changes in four fractions: the rumen solid-phase (RS), liquid-phase (RL), protozoa-associated (RP), and epithelium-associated (RE) from 1 ...
Zuo Wang, Chijioke O. Elekwachi, Jinzhen Jiao, Min Wang, Shaoxun Tang, Chuanshe Zhou, Zhiliang Tan, Robert J. Forster   +7 more
doaj   +1 more source

Modeling of breath methane concentration profiles during exercise on an ergometer [PDF]

, 2016
We develop a simple three compartment model based on mass balance equations which quantitatively describes the dynamics of breath methane concentration profiles during exercise on an ergometer.
Jandacka, Martin, King, Julian, Mochalski, Pawel, Mohacsi, Arpad, Ruzsanyi, Vera, Szabo, Anna, Szabo, Gabor, Teschl, Gerald, Teschl, Susanne, Unterkofler, Karl   +9 more
core   +2 more sources

Freeze‐dried Lactobacillus spp. improved average daily liveweight gain and reduced methane intensity in growing lambs

Journal of the Science of Food and Agriculture, Volume 106, Issue 6, Page 3857-3865, April 2026.
Abstract BACKGROUND Direct fed microbials (DFM) are natural and safe enteric methane mitigants for ruminant livestock systems. While previous studies have demonstrated the effect of Lactobacillus spp. on methane mitigation, challenges remain in effectively delivering DFM in extensive grazing systems. The objective of this experiment was to evaluate the
Sreemol Suthan Nair, Stephanie K Muir, S Richard O Williams, Aodán S ó Neachtain, Subhash Chandra, Pablo S Alvarez‐Hess, Long Cheng, Joe L Jacobs   +7 more
wiley   +1 more source

Methanogenic \u3cem\u3eArchaea\u3c/em\u3e and human periodontal disease [PDF]

, 2004
Archaea have been isolated from the human colon, vagina, and oral cavity, but have not been established as causes of human disease. In this study, we reveal a relationship between the severity of periodontal disease and the relative abundance of archaeal
Armitage, Gary C., Brinig, Mary M., Lepp, Paul W., Ouverney, Cleber C., Palm, Katherine, Relman, David A.   +5 more
core   +1 more source

Bridging the Gap From Peat to Ponds: Terrestrial and Aquatic Greenhouse Gas Emissions in an Evolving Permafrost‐Associated Subarctic Peatland

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract Rapid permafrost thaw in peatlands transforms the subarctic landscape into a mosaic of ponds and peat soil, varying in moisture, carbon and nutrients, and time since thaw. As subarctic permafrost degrades, ponds emerge and mature and can gradually infill with Sphagnum peat.
Melanie S. Burnett, Cynthia M. Kallenbach, Isabelle Laurion, Jérôme Comte, Roxane Maranger, Martial Leroy, Peter M. J. Douglas   +6 more
wiley   +1 more source

Methanogens dominate methanotrophs and act as a methane source in aquaculture pond sediments

Ecotoxicology and Environmental Safety
Aquaculture pond sediments act as hotspots for methane (CH4) emissions; however, knowledge gaps on the regulation of microorganisms hinder our further understanding of methane dynamics in aquaculture pond sediment.
Hongda Liu, Zhe Pan, Yucen Bai, Shaogang Xu, Zhaoxing Wu, Junfeng Ma, Zhuonan Wang, Zhaohui Tian, Yan Chen   +8 more
doaj   +1 more source