Partial characterization
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Ebook "An integrated approach for added-value products from lignocellulosic biorefineries: Vanillin, syringaldehyde, polyphenols and polyurethane" offers the state of the art on the progress and accomplishments of 25 years of research at the Associate Laboratory LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials on lignin conversion to value-added products and their downstream separation.
173p tracanhphuonghoa1007 22-04-2024 5 2 Download
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Congenital ectopia lentis is characterized by dislocation of the lens caused by partial or complete abnormalities in the zonular fibers. It can be caused by either systemic diseases or isolated ocular diseases. Gene detection techniques can provide valuable information when an etiological diagnosis is challenging.
7p vitiki 30-01-2024 3 2 Download
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The 18q-deletion syndrome is a rare congenital chromosomal disorder caused by a partial deletion of the long arm of chromosome 18. The diagnosis of a patient with this syndrome relies on the family medical history, physical examination, developmental assessment, and cytogenetic findings.
7p vitiki 30-01-2024 5 2 Download
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Cells in every epithelium can be roughly divided in three compartments: stem cell (SC) compartment, transient amplifying cell (TA) compartment and terminally differentiated (TD) compartment. Maturation of stem cells is characterized by epithelial stromal interaction and sequential maturational movement of stem cell’s progeny through those compartments.
16p vischultz 20-10-2023 3 1 Download
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Arabinoxylans (AXs) display biological activities that depend on their chemical structures. To structurally characterize and distinguish AXs using a non-enzymatic approach, various TEMPO-oxidized AXs were partially acid-hydrolysed to obtain diagnostic oligosaccharides (OS).
11p viginny 30-12-2022 7 2 Download
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The study "Genetic analysis of African swine fever virus based on major genes encoding p72, p54 and p30" was set out to characterize African swine fever virus genotypes from 20 farms in 10 provinces, which occurred ASF outbreaks in 2019 and 2020. The results are expected to contribute sequence data for molecular epidemiology studies and provide further understanding of ASF disease patterns in Southern Vietnam.
8p tieuvulinhhoa 22-09-2022 7 2 Download
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The classical Triebel-Lizorkin spaces on Euclidean spaces Rn, considered as generalizations of other classical spaces such as Lesbegue spaces, BMO spaces, Hardy spaces, and Sobolev spaces, are essential in approximation theory and partial differential equations.
13p viericschmid 07-01-2022 13 0 Download
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Delirium is a common problem that occurs in 5–50% of elderly individuals following surgery. Patients who develop delirium after surgery are at increased risk for serious complications. Recent studies suggest that patients with obstructive sleep apnea (OSA), a sleep disorder characterized by repeated episodes of complete or partial blockage of the upper airway – are at greater risk to develop delirium.
8p vampires36 30-12-2021 15 0 Download
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This method resulted in a 7.3 and 9.2% increase in polysaccharide yield from S. daejeonensis B14 and P. geniculate Y8, respectively as compared to OFAT. The biopolymer was partially characterized according to physiochemical properties as follows; white colour crystalline, soluble in hot water, low viscosity and its contents of ash, total carbohydrate, total reducing sugar and total protein are ranged from 5.5 to 7.8%, 44.7 to 42.4%, 14.1 to 13.5%, 1.5 to 2.4%, respectively.
8p schindler 30-12-2021 5 0 Download
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New superabsorbent hydrogels were synthesized through free radical graft copolymerization of partially neutralized acrylic acid (AA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) onto carboxymethyl cellulose (CMC) backbones. The structure and morphology of the synthesized superabsorbent hydrogels were characterized by Fourier transform infrared spectroscopy and scanning electron microscope. The effect of the molar ratio of AMPS to AA, the APS concentration, and the CMC content on swelling ratio was optimized.
11p langthannam 29-12-2021 8 0 Download
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Presence of 10% (v/v) acetonitrile in the reaction medium indicated that purified enzyme was strongly inhibited. It was also detected that some metal ions affected enzyme activity at different rates. As a result, it was observed that esterase from Geobacillus sp. DF20 has extreme temperature and pH stabilities. Therefore, the stability and Km value of the enzyme make this study interesting when compared with the literature.
9p langthannam 29-12-2021 8 0 Download
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Crystallization processes of lipid matrices were characterized by X-ray diffractometry and differential scanning calorimetry. pDNA binding ability of SLNs and the stability of pDNA-SLN complexes with DNase I enzyme were also determined by gel electrophoresis. It was determined that all formulations became positively charged with DOTAP®R. They were able to bind DNA and were partially protective against enzyme degradation. Although additional studies are necessary, this study reveals the promising potential of this gene delivery system for gene therapy.
13p langthannam 29-12-2021 8 0 Download
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A carboxymethylcellulose (CMC)-degrading bacterium was isolated from soil, identified as Bacillus methylotrophicus according to the physiological properties and analyses of 16S rRNA and a partial sequence of the gyrase A (gyrA) gene, and named as B. methylotrophicus Y37. The CMCase enzyme was purified to homogeneity by 20.4-fold with 21.73% recovery using single-step hydrophobic interaction chromatography and biochemically characterized. CMCase showed a molecular weight of approximately 50 kDa as determined by SDS-PAGE.
14p langthannam 29-12-2021 9 0 Download
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The present study is aimed on isolation of OxO enzyme from Pseudomonas strain under high salt stress. The OxO enzyme was produced in bulk under selected salt stress. It was partially purified by ammonium sulphate precipitation method, dialysis and ion-exchange chromatography. The OxO enzyme on enzymatic analysis showed potent activity concerning oxalic acid substrate. The microtiter plate analysis confirmed the ability of OxO enzyme purified from Pseudomonas strain in the diagnosis of oxalate-related disorders and in the future could be used to prepare the diagnostic biosensors
6p mudbound 10-12-2021 6 1 Download
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In this study, a zinc(II) phthalocyanine compound (PcZn) substituted with octakis phenoxyacetamide was synthesized and characterized. Calf thymus DNA (CT-DNA) was used to determine the DNA binding properties of the zinc(II) phthalocyanine compound. This interaction of CT-DNA with PcZn was investigated using electronic absorption spectra, emission spectroscopy, a thermal melting temperature study, cyclic voltammetry, and viscosity measurements in a Tris-HCl buffer solution at a pH of 7.2.
11p tudichquannguyet 29-11-2021 5 0 Download
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In this research, a series of La0.7Sr0.3Co1−yFeyO3−δ (y = 0.0–0.4) was successfully synthesized by a solidstate reaction method and syngas production studies were performed using gas chromatography. Thermogravimetric analysis characterized the concentration of Fe3+, which gave a low H2/CO ratio over La0.7Sr0.3Co1−yFeyO3−δ without the presence of molecular oxygen. All samples possessed a purely rhombohedral structure. The incorporation of more Fe increased the lattice parameter and changed XRD peaks of the La1−xSrxCo0.8Fe0.2O3 from sharp and single to double.
9p tudichquannguyet 29-11-2021 7 0 Download
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Nickel catalysts supported on γ-Al2 O3 were synthesized in the presence of polyvinylpyrrolidone (PVP) using both alkaline polyol method and hydrazine reduction method while fixing the weight ratio of [(PVP)]/[Ni(CH3COO)2·4H2O] at 2. The effects of hydrazine [N2H5OH]/[Ni] and [NaOH]/[Ni] molar ratios on the structural properties of the catalysts were characterized by transmission electron microscopy (HRTEM) and by X-ray diffraction (XRD). The average of monodispersed Ni nanoparticles ranged between 8.0 and 13.0 nm.
19p tudichquannguyet 29-11-2021 10 1 Download
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In this study, 341 Bacillus sp. strains were isolated from agricultural soils of Turkey. The potent extracellular lipase producer was selected. It was identified by 16S rRNA, named as Bacillus cereus ATA179. Optimal nutritional and physical parameters for lipase production were determined. Sucrose as the carbon source, (NH4 )2 HPO4 as the nitrogen source, CaCl2 as the metal ion were obtained. The best results of physical parameters were stated at 45°C, pH 7.0, shaking rate 50 rpm, inoculation amount 7% and inoculum age 24 h.
14p thiencuuchu 27-11-2021 17 1 Download
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Albino mutations are commonly observed in the animal kingdom, including in bivalves. In the blacklipped pearl oyster Pinctada margaritifera, albino specimens are characterized by total or partial absence of colouration resulting in typical white shell phenotype expression.
13p vijeeni2711 30-06-2021 11 2 Download
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Thinopyrum intermedium (2n = 6x = 42) is an important wild perennial Triticeae species exhibiting many potentially favorable traits for wheat improvement. Wheat-Th. intermedium partial amphiploids serve as a bridge to transfer desirable genes from Th. intermedium into common wheat.
10p vijichea2711 28-05-2021 3 1 Download