Results 21 to 30 of about 6,245 (267)

Isolation and Biosynthetic Analysis of Haliamide, a New PKS-NRPS Hybrid Metabolite from the Marine Myxobacterium Haliangium ochraceum

open access: yesMolecules, 2016
Myxobacteria of marine origin are rare and hard-to-culture microorganisms, but they genetically harbor high potential to produce novel antibiotics. An extensive investigation on the secondary metabolome of the unique marine myxobacterium Haliangium ...
Yuwei Sun   +5 more
doaj   +1 more source

Iron-modified ceria and Au/ceria catalysts for Total and Preferential Oxidation of CO (TOX and PROX) [PDF]

open access: yes, 2010
Iron-modified ceria supports containing different molar percentages of Fe (0%, 10%, 25%, and 50%) were synthesized by thermal decomposition of the metal propionates.
Arzamendi, Gurutze   +5 more
core   +1 more source

Crystal structure of Bfr A from Mycobacterium tuberculosis: incorporation of selenomethionine results in cleavage and demetallation of haem. [PDF]

open access: yesPLoS ONE, 2009
Emergence of tuberculosis as a global health threat has necessitated an urgent search for new antitubercular drugs entailing determination of 3-dimensional structures of a large number of mycobacterial proteins for structure-based drug design.
Vibha Gupta   +4 more
doaj   +1 more source

Effect of calcium propionate on rats with a high-fat hypercaloric diet

open access: yesRegulatory Mechanisms in Biosystems, 2023
Calcium propionate, as an approved food additive, is widely used as a mold inhibitor in food and feed. It is recognized as safe, but when metabolized in the gastrointestinal tract, it can affect the body’s metabolism both directly and indirectly through ...
M. A. Lieshchova   +4 more
doaj   +1 more source

Human Heme Oxygenase Oxidation of 5- and 15-Phenylhemes [PDF]

open access: yes, 2004
Human heme oxygenase-1 (hHO-1) catalyzes the O2- dependent oxidation of heme to biliverdin, CO, and free iron. Previous work indicated that electrophilic addition of the terminal oxygen of the ferric hydroperoxo complex to the -meso-carbon gives 5 ...
Alvarez, Diego Ezequiel   +7 more
core   +1 more source

Oxidation of CO over gold supported on Zn-modified ceria catalysts [PDF]

open access: yes, 2011
A series of Zn-modified ceria solids were prepared by thermal decomposition of the corresponding metal propionates. The formation of segregated ZnO particles on the ceria surface is evidenced for these solids using X-ray diffraction; in addition to this ...
Centeno Gallego, Miguel Ángel   +3 more
core   +1 more source

Effects of feeding practices on the diversity of faecal short chain Fatty acids in 1-4 months infants in Pakistani cohort

open access: yesRehman Journal of Health Sciences, 2020
Introduction: The most important product of fermentation of non-digestible carbohydrates is short chain fatty acids. Formation of these metabolites are mainly dependent on diet and gut microbial colonization.
Mehwish Durrani   +5 more
doaj   +1 more source

Determination of the degree of substitution (DS) of mixed cellulose esters by elemental analysis [PDF]

open access: yes, 2001
Equations for transforming the results of elemental analysis (EA) into degree of substitution (DS) values for aliphatic cellulose esters were developed.
Borredon, Marie-Elisabeth   +2 more
core   +3 more sources

Comparison of Three Methods to Determine the Degree of Substitution of Quinoa and Rice Starch Acetates, Propionates, and Butyrates: Direct Stoichiometry, FTIR, and 1H-NMR

open access: yesFoods, 2020
Rice and quinoa starch esters were prepared by acylation using short-chain fatty acid anhydrides with different chain lengths (acetic, propionic, and butyric anhydride). A direct stoichiometric method based on the acylation reaction was used to determine
Nabilah Abdul Hadi   +4 more
doaj   +1 more source

Proximal and distal control for ligand binding in neuroglobin: role of the CD loop and evidence for His64 gating [PDF]

open access: yes, 2019
Neuroglobin (Ngb) is predominantly expressed in neurons of the central and peripheral nervous systems and it clearly seems to be involved in neuroprotection.
Anselmi, Massimiliano   +10 more
core   +4 more sources

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