Results 11 to 20 of about 30,728 (218)

Acetate Production by Moorella thermoacetica via Syngas Fermentation: Effect of Yeast Extract and Syngas Composition

Fermentation, 2023
Gasifiers produce a gaseous mixture of CO/CO2/H2, also known as synthesis gas (syngas), containing varying compositions and ratios depending on the lignocellulose material types, gasifier design, and gasification conditions. Different physicochemical and
Budi Mandra Harahap, Birgitte K. Ahring
doaj   +1 more source

Biogas Production and Energy Balance in a Two-Stage Anaerobic Digestion of Fruit and Vegetable Waste: Thermophilic versus Mesophilic

Fermentation, 2023
This study aimed to investigate biogas production and energy balance in a two-stage anaerobic digestion system of fruit/vegetable waste under thermophilic and mesophilic conditions. Firstly, the feedstock was hydrolyzed and acidified in an acidic reactor
Pham Van Dinh, Takeshi Fujiwara
doaj   +1 more source

Evaluation of a Thermophilic, Psychrostable, and Heavy Metal-Resistant Red Sea Brine Pool Esterase

Marine Drugs, 2022
Lipolytic enzymes catalyze the hydrolysis and synthesis of ester compounds. They are valuable in the pulp, food, and textile industries. This study aims to comprehensively evaluate the extreme properties of a hormone-sensitive lipase (EstATII-TM ...
Shimaa F. Ahmed, Rehab Z. Abdallah, Rania Siam   +2 more
doaj   +1 more source

Carbon Dioxide and Methane Emissions during the Composting and Vermicomposting of Sewage Sludge under the Effect of Different Proportions of Straw Pellets

Atmosphere, 2021
Owing to rapid population growth, sewage sludge poses a serious environmental threat across the world. Composting and vermicomposting are biological technologies commonly used to stabilize sewage sludge.
Bayu Dume, Ales Hanc, Pavel Svehla, Pavel Míchal, Abraham Demelash Chane, Abebe Nigussie   +5 more
doaj   +1 more source

Enzymatic Preparation of Gentiooligosaccharides by a Thermophilic and Thermostable β-Glucosidase at a High Substrate Concentration

Foods, 2022
Gentiooligosaccharides (GnOS) are a kind of oligosaccharide formed by glucose with β-1-6 glycosidic bonds, which has become a new type of functional oligosaccharide for its unique refreshing bitter taste and valuable probiotic effects.
Wei Xia, Lingling Sheng, Wanmeng Mu, Yuping Shi, Jing Wu   +4 more
doaj   +1 more source

Effects of phenyl acids on different degradation phases during thermophilic anaerobic digestion

Frontiers in Microbiology, 2023
Aromatic compounds like phenyl acids (PA) can accumulate during anaerobic digestion (AD) of organic wastes due to an increased entry of lignocellulose, secondary plant metabolites or proteins, and thermodynamic challenges in degrading the benzene ring ...
Eva Maria Prem, Alessa Schwarzenberger, Rudolf Markt, Andreas Otto Wagner   +3 more
doaj   +1 more source

16S rDNA-based analysis reveals cosmopolitan occurrence but limited diversity of two cyanobacterial lineages with contrasted patterns of intracellular carbonate mineralization

Frontiers in Microbiology, 2014
Cyanobacteria are mainly thought to induce carbonate precipitation extracellularly via their photosynthetic activity combined with the nucleation potential of exopolymeric substances. The discovery in microbialites of the alkaline lake Alchichica (Mexico)
Marie eRagon, Marie eRagon, Karim eBenzerara, David eMoreira, Rosaluz eTavera, Purificacion eLopez-Garcia   +5 more
doaj   +1 more source

A Thermophilic Bacterial Esterase for Scavenging Nerve Agents: A Kinetic, Biophysical and Structural Study

Molecules, 2021
Organophosphorous nerve agents (OPNA) pose an actual and major threat for both military and civilians alike, as an upsurge in their use has been observed in the recent years.
Janek Bzdrenga, Elodie Trenet, Fabien Chantegreil, Kevin Bernal, Florian Nachon, Xavier Brazzolotto   +5 more
doaj   +1 more source

Biodegradation of Food Waste by Mesophilic and Thermophilic Microorganisms in Duhok city [PDF]

Kirkuk Journal of Science, 2022
Garbage kitchen waste has been considered as one of the most difficult global issues with negative effect on the environment and health. It contains high amounts of cellulose and other organic waste which become ideal environments for the growth of ...
Adel Omar Ahmad, Hussein Ali Sadeq, Yousif Albany, Mohammad Ismail Al-Berfkani   +3 more
doaj   +1 more source

Redirecting a Native Ene‐Reductase Toward Desaturation With Reverse Enantioselectivity

Angewandte Chemie, EarlyView.
A native ene‐reductase, XenA, was repurposed to catalyze the reverse‐enantioselective desaturation of cyclohexanones. The final variant was obtained through extensive protein engineering, combining PROSS‐guided computational design with mutagenesis and screening.
Qing‐Qing Zeng, Cristina Berga, Carla Calvó‐Tusell, Marc Garcia‐Borràs, Zhen Liu   +4 more
wiley   +2 more sources