Semen from five dairy AI bulls was split-filtered through a Sephadex G-15 filter and frozen in a Tris–citric acid buffer egg yolk-based extender. The effect of filtration was studied morphologically for individual sperm abnormalities. Computer-assisted sperm analysis (CASA) was used for motilit...

Gel chromatography of the humic substances in coexisting inorganic salts using untreated and ammonia-treated Sephadex G-15 was investigated. The fulvic acid found in treated sewage and the fulvic and humic acids found in leaf mold were used as samples.When untreated Sephadex G-15 was used, the e...

Chronic unpredictable mild stress (CUMS) - a rodent model of depression mimics a variety of neurochemical and behavioral alterations similar to those seen in human depression. This study evaluated the antidepressant activity of hyperforin in the CUMS model using fluoxetine (FLX) as a reference d...

Pasting and functional properties of water chestnut starch (WCS) alone and mixture of WCS and xanthan gum (XG) were determined by addition of NaCl (0.5, 1, and 2%) at fixed water chestnut starch (5%) and xanthan gum (0.3%) concentration. Results indicated that presence of NaCl had a significant ...

Xanthan gum is an important commercial polysaccharide produced by Xanthomonas species. In this study, xanthan production was investigated using a local isolate of Xanthomonas campestris MO-03 in medium containing various concentrations of chicken feather peptone (CFP) as an enhancer substrate. C...

Xanthan gum solutions are used in the oil industry for flooding, drilling and completion operations. The stabilization of the structure of xanthan gum solutions in presence of salts increases the value of both the order-disorder transition temperature and the gel strength. This effect is very im...

Pyrophyllite is the most common hydrophobic mineral encountered in Fengshan iron sulfide ore, China. Commonly depressants for separation of pyrophyllite suffer the disadvantages of limited availability and high cost. To solve this problem, a novel polysaccharide xanthan gum (XGM) was proposed fo...

To improve the thermal stability and adsorption performance, xanthan gum was modified with acrylamide and trimethylolpropane triglycidyl ether (TTE). The modified xanthan gum (XGTTE) was characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffractogram (XRD), differential sca...

Since 1980′s natural polymers are studied as sources for solid polymer electrolytes (SPEs) in opto-electronic equipment because of their abundance in the environment, inexpensiveness, and biological degradation characteristics. Xanthan gum is a naturally occurring polysaccharide found in the mi...

Lignocellulosic-like materials are potentially low-cost fermentation substrates, but their pretreatment brings about by-products. This work investigated the effects of furfural on xanthan gum (XG) production, and product quality was evaluated by structure, viscosity and antioxidant capacities. X...

Xanthan gum (XG), a clean, non-toxic macromolecular polysaccharide, was studied as a depressant in the flotation separation of scheelite from calcite. Its selective inhibition mechanism was investigated by adsorption experiments, fourier transform infrared spectroscopy (FTIR) analysis and X-ray ...

Polymer - surfactant aqueous systems are important for a variety of industrial applications. The properties of those systems among other depend on the interactions between them. The aim of this work was to determine interactions between anionic polymer - xanthan gum and anionic surfactant - SDS ...

The rheological, texture and microstructure properties of xanthan gum (XG) water solutions and XG emulsions, with and without Tween 80, were investigated and related to the emulsion fat lipolysis during in vitro digestion. The effect of digestion on the rheological properties of XG aqueous dispe...

A crude particulate enzyme preparation from mung bean shoots partially freed from sugar transferases synthesized pure araban from UDP-l-14C-arabinose. The preparation thus allowed to study some properties of the UDP-arabinose transferase which was shown to require 7 mM Mn2+ and pH 6–6·5 for op...

The debranched plant polysaccharide araban exhibits fat mimic properties. Among the Rhizobium family of bacterial polysaccharides, a galactoglucan, having a disaccharide repeating unit, is equally effective in root nodulation as the complex succinoglycan and similar polysaccharides having branch...

The polyene antibiotic, filipin, was used as a probe for the detection of sterols in the freeze-fractured plasma membrane and the flagellar membranes of the pathogenic protozoa, Tritrichomonas foetus. A homogeneous distribution of filipin-sterol complexes was seen throughout the plasma membrane,...

Filipin, a sterol-specific polyene antibiotic, has been shown by electron microscopy to form complexes in membranes of mouse urinary bladder cells. Following instillation of a glutaraldehyde-filipin-dimethylsulfoxide solution into the bladder lumen, filipin-cholesterol complexes appear as membra...

The effects of changes in plasma membrane (PM) sterol lateral organization and availability on the control of signaling pathways have been reported in various animal systems, but rarely assessed in plant cells. In the present study, the pentaene macrolide antibiotic filipin III, commonly used in...

Oxidation of (C5H5)3UIII·THF with oxygen in tetrahydrofuran yields the linear bridged complex [(C5H5)3U][μ-O]. Three cyclopentadienyl rings are η5-covalently bonded to each uranium atom to form a distorted tetrahedron with one bridging oxygen atom. The UOU angle is 180° with the oxygen a...

The results of absorption, emission and magnetochemical measurements for mono and bisacetonitrile adducts derived from tris(η5-cyclopentadienyl)praseodmium(III) are reported. On the basis of these measurements the truncated crystal field splitting pattern of Cp3Pr·NCCH3 could be derived. The a...