Results 121 to 130 of about 14,649 (265)

Examining mixotrophic fermentation in fed‐batch mode for C1‐gas valorization

open access: yesJournal of Chemical Technology &Biotechnology, Volume 100, Issue 7, Page 1453-1462, July 2025.
Abstract BACKGROUND C1‐gases like CO and CO2, significant contributors to climate change, offer the potential for sustainable bioconversion into valuable products. The study explored mixotrophic fermentation using C1‐gases in fed‐batch mode to improve the production of target compounds, focusing on Clostridium aceticum and Clostridium carboxidivorans ...
Marina Fernández‐Delgado   +5 more
wiley   +1 more source

Transformation of 1,1,1-trichloroethane in an anaerobic packed-bed reactor at various concentrations of 1,1,1-trichloroethane, acetate and sulfate [PDF]

open access: yes, 1997
Biotransformation of 1,1,1-trichloroethane (CH3CCl3) was observed in an anaerobic packed-bed reactor under conditions of both sulfate reduction and methanogenesis. Acetate (1 mM) served as an electron donor.
Best, J.H. de,   +5 more
core   +3 more sources

Methanotrophic Flexibility of ‘Ca. Methanoperedens’ and Its Interactions With Sulphate‐Reducing Bacteria in the Sediment of Meromictic Lake Cadagno

open access: yesEnvironmental Microbiology, Volume 27, Issue 7, July 2025.
In anoxic sediments of the meromictic freshwater Lake Cadagno ‘Ca. Methanoperedens’ and sulphate‐reducing Desulfobacterota QYQD01 co‐occur. Metagenomics revealed that ‘Ca. Methanoperedens’ genomes harbour different extracellular electron transfer pathways.
Maider J. Echeveste Medrano   +7 more
wiley   +1 more source

14C-Cobalamin Absorption from Endogenously Labeled Chicken Eggs Assessed in Humans Using Accelerator Mass Spectrometry. [PDF]

open access: yes, 2019
Traditionally, the bioavailability of vitamin B-12 (B12) from in vivo labeled foods was determined by labeling the vitamin with radiocobalt (57Co, 58Co or 60Co).
Allen, Lindsay H   +6 more
core   +2 more sources

Enzymatic decyanation of cyanocobalamin in rat tissues

open access: yesJournal of Pharmacy and Pharmacology, 1967
AbstractCyanocobalamin is decyanated in vitro to hydroxocobalamin by rat liver and kidney. This appears to be due to an enzyme system which we have called “cyanocobalamindecyanase”. The enzyme is in the soluble fraction of the cells; it requires reduced cozymases and flavins and has an optimum pH of 7.2 under anaerobic conditions.
Levorato C, Cima L, Mantovan R
openaire   +3 more sources

Exploring Early Childhood Development Interventions for Building Human Capital in Sub‐Saharan Africa: A Scoping Review

open access: yesChild: Care, Health and Development, Volume 51, Issue 4, July 2025.
ABSTRACT Background Inequalities in the provision and implementation of early childhood development (ECD) interventions in Sub‐Saharan Africa remain a challenge. This scoping review aimed to investigate the types and extent of ECD interventions in this region, using the Nurturing Care framework (NCF).
Johanna Beukes   +5 more
wiley   +1 more source

Vitamin B12 measurements across neurodegenerative disorders. [PDF]

open access: yes, 2020
Background:Vitamin B12 deficiency causes a number of neurological features including cognitive and psychiatric disturbances, gait instability, neuropathy, and autonomic dysfunction. Clinical recognition of B12 deficiency in neurodegenerative disorders is
Christine, Chadwick W   +3 more
core  

Characterization and ex vivo modelling of endodontic infections from the Arabian Gulf region

open access: yesInternational Endodontic Journal, Volume 58, Issue 7, Page 1091-1108, July 2025.
Abstract Aim The microbiota of endodontic infections in patients from the Arabian Gulf region (AGR) is largely unexplored. While research in different global regions has investigated the microbial composition of such infections, studies using shotgun metagenomic sequencing (SMS) alongside culture‐dependent techniques (CDT) are limited.
Rania Nassar   +4 more
wiley   +1 more source

The refolding of recombinant human liver methylmalonyl-CoA mutase from inclusion bodies produced in Escherichia coli : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University [PDF]

open access: yes, 1998
Human methylmalonyl-CoA mutase (hMCM) is an adenosylcobalamin-dependent enzyme that catalyses the structural rearrangement of (R)-methylmalonyl-CoA to succinyl-CoA as pan of the catabolism of the branched chain amino acids valine, leucine and isoleucine,
Hayes, Michelle Marie
core  

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