Results 41 to 50 of about 1,020 (156)

Advances in Low‐Carbon Hydrogen Production via Anaerobic Digestion: A Review of the Processes, Challenges, and Future Perspectives

International Journal of Chemical Engineering, Volume 2026, Issue 1, 2026.
Hydrogen production through anaerobic fermentation has gained prominence among researchers as a promising ecological route, capable of combining the treatment of highly polluting waste with the generation of a clean fuel. Hydrogen is considered a strategic energy carrier for the transition and restructuring of the global energy matrix, as it is a ...
Adrielle S. dos Santos, Maria I. T. Silva, Mayara A. de F. Santos, Fernanda N. R. P. Santana, Diego F. Bispo, Samia T. A. Maciel, Arnab Biswas   +6 more
wiley   +1 more source

Update of the list of QPS‐recommended biological agents intentionally added to food or feeds as notified to EFSA

EFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The qualified presumption of safety (QPS) process was developed to provide a harmonised safety assessment approach to support EFSA Scientific Panels and Units. The QPS approach assesses the taxonomic identity, body of relevant knowledge and safety concerns of microorganisms intentionally added to the food and feed chain.
EFSA Panel on Biological Hazards (BIOHAZ), Ana Allende, Avelino Alvarez‐Ordóñez, Valeria Bortolaia, Sara Bover‐Cid, Alessandra De Cesare, Wietske Dohmen, Laurent Guillier, Liesbeth Jacxsens, Maarten Nauta, Lapo Mughini‐Gras, Jakob Ottoson, Luisa Peixe, Fernando Perez‐Rodriguez, Panagiotis Skandamis, Elisabetta Suffredini, Marianne Chemaly, Pier Sandro Cocconcelli, Pablo Salvador Fernández Escámez, Miguel Prieto Maradona, Amparo Querol, Lolke Sijtsma, Juan Evaristo Suarez, Ingvar Sundh, Fulvio Barizzone, Justine Dastouet, Nadya Doyle, Sandra Correia, Lieve Herman   +28 more
wiley   +1 more source

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 23: Suitability of taxonomic units notified to EFSA until September 2025

EFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The qualified presumption of safety (QPS) process was developed to provide a harmonised safety assessment approach to support EFSA Scientific Panels and Units. The QPS approach assesses the taxonomic identity, body of relevant knowledge and safety of microorganisms intentionally added to the food and feed chain.
EFSA Panel on Biological Hazards (BIOHAZ), Ana Allende, Avelino Alvarez‐Ordóñez, Valeria Bortolaia, Sara Bover‐Cid, Alessandra De Cesare, Wietske Dohmen, Laurent Guillier, Liesbeth Jacxsens, Maarten Nauta, Lapo Mughini‐Gras, Jakob Ottoson, Luisa Peixe, Fernando Perez‐Rodriguez, Panagiotis Skandamis, Elisabetta Suffredini, Marianne Chemaly, Pier Sandro Cocconcelli, Pablo Salvador Fernández Escámez, Miguel Prieto Maradona, Amparo Querol, Lolke Sijtsma, Juan Evaristo Suarez, Ingvar Sundh, Fulvio Barizzone, Justine Dastouet, Nadya Doyle, Sandra Correia, Lieve Herman   +28 more
wiley   +1 more source

Continuous Fermentation of <em>Clostridium tyrobutyricum</em> with Partial Cell Recycle as a Long-Term Strategy for Butyric Acid Production

Energies, 2012
In making alternative fuels from biomass feedstocks, the production of butyric acid is a key intermediate in the two-step production of butanol. The fermentation of glucose via <em>Clostridium tyrobutyricum </em>to butyric acid produces ...
Edgar C. Clausen, Jamie A. Hestekin, Robert R. Beitle, Nicole Lorenz, Amy McGraw, Jianjun Du   +5 more
doaj   +1 more source

A Holistic Agronomic Assessment of Slurry Application Methods in Grassland: Implications of Distribution Equipment, Consistency and Timing for Forage Production

Grass and Forage Science, Volume 80, Issue 4, December 2025.
ABSTRACT The use of low ammonia emission equipment for slurry distribution has become mandatory in a number of countries. However, the effects of different application methods on dry matter (DM) yield, nitrogen (N) utilisation, botanical composition and forage quality are still debated.
Annett Latsch, Olivier Huguenin‐Elie, Ueli Wyss, Daniel Nyfeler   +3 more
wiley   +1 more source

Evaluation of polysaccharides from Laetiporus sulphureus on the growth of gastrointestinal probiotics and in vitro digestion

Frontiers in Sustainable Food Systems
IntroductionProbiotics can improve immune responses and regulate the ecosystem of microorganisms in the gastrointestinal tract.MethodsThree primary models, including the Reparameterized Gompertz, Huang, and Baranyi and Roberts models were evaluated and ...
Xinting Zhu, Xinting Zhu, Xinting Zhu, Shan Lin, Shan Lin, Shan Lin, Qi Wei, Qi Wei, Qi Wei   +8 more
doaj   +1 more source

Improving sustainable hydrogen production from green waste: [FeFe]-hydrogenases quantitative gene expression RT-qPCR analysis in presence of autochthonous consortia

Biotechnology for Biofuels, 2021
Background Bio-hydrogen production via dark fermentation of low-value waste is a potent and simple mean of recovering energy, maximising the harvesting of reducing equivalents to produce the cleanest fuel amongst renewables.
M. Arizzi, S. Morra, G. Gilardi, M. Pugliese, M. L. Gullino, F. Valetti   +5 more
doaj   +1 more source

Influence of Manure Application Techniques on the Microbial Content of Grass and Grass Silage

Grass and Forage Science, Volume 80, Issue 4, December 2025.
ABSTRACT Field observations of visible dry manure residues in organically fertilised grassland, especially in drought areas in Bavaria (Germany), raised questions about whether different manure application methods influence the microbial composition in grass and in silages.
Samart Dorn‐In, Hanna Geißler, Katrin Harms, Claudia Guldimann, Hubert Spiekers, Michael Diepolder, Karin Schwaiger   +6 more
wiley   +1 more source

nZVI Impacts Substrate Conversion and Microbiome Composition in Chain Elongation From D- and L-Lactate Substrates

Frontiers in Bioengineering and Biotechnology, 2021
Medium-chain carboxylates (MCC) derived from biomass biorefining are attractive biochemicals to uncouple the production of a wide array of products from the use of non-renewable sources.
Carlos A. Contreras-Dávila, Johan Esveld, Cees J. N. Buisman, David P. B. T. B. Strik   +3 more
doaj   +1 more source

Effect of pH on metabolic pathway shift in fermentation of xylose by Clostridium tyrobutyricum [PDF]

Journal of Biotechnology, 2004
The effect of pH (between 5.0 and 6.3) on butyric acid fermentation of xylose by Clostridium tyrobutyricum was studied. At pH 6.3, the fermentation gave a high butyrate production of 57.9 g l(-1) with a yield of 0.38-0.59 g g(-1) xylose and a reactor productivity up to 3.19 g l(-1)h(-1). However, at low pHs (
Ying, Zhu, Shang-Tian, Yang
openaire   +2 more sources