Results 51 to 60 of about 1,727 (175)

Genome-wide dynamic transcriptional profiling in clostridium beijerinckii NCIMB 8052 using single-nucleotide resolution RNA-Seq

BMC Genomics, 2012
Background Clostridium beijerinckii is a prominent solvent-producing microbe that has great potential for biofuel and chemical industries. Although transcriptional analysis is essential to understand gene functions and regulation and thus elucidate ...
Wang Yi, Li Xiangzhen, Mao Yuejian, Blaschek Hans P   +3 more
doaj   +1 more source

Solubilization of Particulate Cellulose Using Anaerobic Acidogenesis

Water Science and Technology, 1992
Hydrolysis and acidogenesis in anaerobic digestion comprises the first step in converting biodegradable particulates into methane gas. The optimum conditions in this stage are different from those for methanogenesis. Results of tests to solubilize organic particulates of a known size distribution are presented and discussed here.
A. D. Levine, Y. T. Chyi
openaire   +1 more source

Integrated and closed‐loop biorefinery strategies for efficient waste valorization and biofuel production

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1656-1676, April 2026.
Abstract Advancements in biofuel production technologies are essential for reducing global dependence on fossil fuels and addressing their overexploitation. Many valuable components of biomass, such as cellulose, hemicellulose, and lignin, remain underused in traditional biorefineries, which typically rely on a single feedstock to produce a primary ...
Marcos Paulo Patta Granado, Prakhar Talwar, Sahil Sahil, Andrea Cressoni De Conti, Sonil Nanda, Janusz A. Kozinski   +5 more
wiley   +1 more source

Waste to Bioplastic Conversion by the Moderate Halophilic Bacterium Halomonas Boliviensis

Chemical Engineering Transactions, 2016
The main purpose of this work was to evaluate the use of a waste stream for the production of polyhydroxyalkanoates (PHA). With the anaerobic acidogenesis process it is possible to treat and revaluate complex waste into a wide combination of volatile ...
M. Garcia-Torreiro, T. Lu-Chau, A. Steinbuchel, J. Lema   +3 more
doaj   +1 more source

Effect of metals on the regulation of acidogenic metabolism enhancing biohydrogen and carboxylic acids production from brewery spent grains: Microbial dynamics and biochemical analysis

Engineering in Life Sciences, 2022
The present study reports the mixed culture acidogenic production of biohydrogen and carboxylic acids (CA) from brewery spent grains (BSG) in the presence of high concentrations of cobalt, iron, nickel, and zinc. The metals enhanced biohydrogen output by
Omprakash Sarkar, Ulrika Rova, Paul Christakopoulos, Leonidas Matsakas   +3 more
doaj   +1 more source

Effect of Stirring on Organic Matter Conversion in Horizontal Biodigesters

Water Environment Research, Volume 98, Issue 4, April 2026.
The mechanical stirring effectively mitigates sludge accumulation without compromising overall treatment performance or biogas generation, promoting a reduced buildup of solids within the reactor. ABSTRACT This study investigated the effect of localized mechanical stirring on the performance and organic matter conversion pathways in two bench‐scale ...
Gabrielle Oliveira Rosa da Cruz, André Pereira Rosa, Izabelle de Paula Sousa, Cláudio Leite de Souza, Alisson Carraro Borges   +4 more
wiley   +1 more source

Evidence for PAH Removal Coupled to the First Steps of Anaerobic Digestion in Sewage Sludge

International Journal of Chemical Engineering, 2013
Anaerobic degradation of polycyclic aromatic hydrocarbons has been brought to the fore, but information on removal kinetics and anaerobic degrading bacteria is still lacking.
Glenda Cea-Barcia, Hélène Carrère, Jean Philippe Steyer, Dominique Patureau   +3 more
doaj   +1 more source

Robust Performance of Sub‐Thermophilic Anaerobic Digestion Enabled by Microbial Functional Redundancy

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
We tested whether anaerobic digesters could operate at lower temperatures without losing methane production. Pilot‐scale reactors were run at 48°C or 55°C. Methane yields and gas quality were similar. Lower temperatures reduced volatile fatty acids and supported more diverse microbial communities.
Richard K. Tennant, Olukayode Kuloyo, Andrew G. Moody, Jose R. Lopez, Ashley V. Baugh, Jason R. Jiminez, Gabrielle R. Joslin, Damian J. Allen, Phillip G. Hamilton, David A. Parker, Jeffrey R. Fedenko   +10 more
wiley   +1 more source

Spatial monitoring of hydrolysis in a plug-flow bioreactor: a support for flexible operation?

Bioresources and Bioprocessing
Hydrolysis at changing hydraulic retention time, recirculation, bedding straw content in the feed, bioaugmentation and the impact of those changes on gradient formation in the liquid phase in plug-flow reactors (PFRs) was examined.
Theresa Menzel, Peter Neubauer, Stefan Junne   +2 more
doaj   +1 more source

A two-phase model for ABE fermentation with a modified Clostridium acetobutylicum strain

Chemical Engineering Transactions
Acetone-Butanol-Ethanol (ABE) fermentation has regained interest due to the environmental problems generated by fossil fuels and the need to modify production chains including considerations of sustainability and circular economy.
Paula A. Tapias C., Karoll M. Rubiano M., Juan C. Barreiro P., Nicolas Muñoz Castrillón, Jose M. Bernal M., Carlos A. M. Riascos   +5 more
doaj   +1 more source