Results 91 to 100 of about 17,656 (213)

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

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

The Sheaths of Methanospirillum Are Made of a New Type of Amyloid Protein

Frontiers in Microbiology, 2018
The genera Methanospirillum and Methanosaeta contain species of anaerobic archaea that grow and divide within proteinaceous tubular sheaths that protect them from environmental stressors.
Line Friis Bakmann Christensen, Lonnie Maria Hansen, Kai Finster, Gunna Christiansen, Per Halkjær Nielsen, Daniel Erik Otzen, Morten Simonsen Dueholm   +6 more
doaj   +1 more source

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

Is the methanogenic community reflecting the methane emissions of river sediments?—comparison of two study sites

MicrobiologyOpen, 2017
Studies on methanogenesis from freshwater sediments have so far primarily focused on lake sediments. To expand our knowledge on the community composition of methanogenic archaea in river sediments, we studied the abundance and diversity of methanogenic ...
Prem Prashant Chaudhary, Martin Rulík, Martin Blaser   +2 more
doaj   +1 more source

Combined Genomic, Transcriptomic, Proteomic, and Physiological Characterization of the Growth of Pecoramyces sp. F1 in Monoculture and Co-culture With a Syntrophic Methanogen

Frontiers in Microbiology, 2019
In this study, the effects of a syntrophic methanogen on the growth of Pecoramyces sp. F1 was investigated by characterizing fermentation profiles, as well as functional genomic, transcriptomic, and proteomic analysis.
Yuanfei Li, Yuqi Li, Wei Jin, Wei Jin, Thomas J. Sharpton, Roderick I. Mackie, Isaac Cann, Isaac Cann, Isaac Cann, Isaac Cann, Yanfen Cheng, Yanfen Cheng, Weiyun Zhu, Weiyun Zhu   +13 more
doaj   +1 more source

A Membership-Fusing Model for Characterizing the Shift of Methanogen Community in a Three-Stage Sludge-Treatment Process

Applied Sciences, 2020
Anaerobic digestion (AD) is an economical and effective method to treat sludge. AD with several pretreatments is the prior process to treat surplus sludge for a wastewater treatment plant. During a sludge-treatment process, various methanogens play their
Linna Cai, Hongyang Li, Hong Yao
doaj   +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

Impact of Fire and Heat Stress on Soil Microorganisms: A Review of Community Changes, Molecular Responses and Plant‐Beneficial Roles

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Ma. del Carmen Orozco‐Mosqueda, Aurora Flores‐Piña, Ajay Kumar, Fannie I. Parra‐Cota, Sergio de los Santos‐Villalobos, Debasis Mitra, Olubukola Oluranti Babalola, Gustavo Santoyo   +7 more
wiley   +1 more source

How much methane do coal seam gas ponds emit?

Environmental Research Communications
Ponds are often used to store significant volumes of water involved in coal seam gas (CSG) extraction, but methane emissions from these ponds in Australia are not well understood.
Se Gong, Linda Stalker, Richard Schinteie, Emma Crooke, David J Midgley   +4 more
doaj   +1 more source