The present study investigated the influence of the extraction techniques expeller pressing, alcohol-extraction and supercritical CO2 (SC-CO2) on the chemical composition, antioxidant capacity and oxidative stability of pomegranate seed oil (PSO) and determined, by experimental design, improved ...

Roses are widely appreciated for the appearance of their flowers and for their fragrance. This latter character results from the combination of different odorant molecules among which monoterpenes are often prevalent constituents. In this study, we report the cloning and characterization of thre...

A toxicologic and dermatologic review of geranyl linalool when used as a fragrance ingredient is presented.

The metabolism of O,O-dimethyl S-[α-(carboethoxy)benzyl]phosphorodithioate (phenthoate), an organophosphorus insecticide of low mammalian toxicity, was investigated in white mice and in susceptible and resistant strains of house flies. Phenthoate was metabolized rapidly in the mouse to a wide v...

Formate dehydrogenase enzymes catalyse the reversible two-electron oxidation of formate to carbon dioxide. The class of metal-dependent formate dehydrogenases comprises prokaryotic enzymes holding redox-active centres and a catalytic site, containing either molybdenum or tungsten ion, that media...

An efficient synthesis of biologically interesting α-CF3-trifluoroalanine derivatives bearing N-(diethoxyphosphoryl)difluoroacetyl moiety in good yields has been elaborated. The key substrate, α-TFM-imino ester, prepared from methyl trifluoropyruvate and (diethoxyphosphoryl)difluoroacetamide, ...

In this study the dual-functionality of four ammonium based Ionic Liquids (AILs) having hydroxide anion namely: tetramethyl ammonium hydroxide (TMAOH), tetraethyl ammonium hydroxide (TEAOH), tetrapropyl ammonium hydroxide (TPrAOH) and, tetrabutyl ammonium hydroxide (TBAOH) is investigated on bin...

This present study is dedicated to the synthesis, characterization and microbial toxicity assessment of phosphonium- and ammonium-based ionic liquids (ILs) bearing four different anions phenylalalinate (Phe), taurinate (Tau), hydroxide (OH), and acetate (Ac). The structures of the subsequent ILs...

This study investigates the effect of anionic surfactant modification on activated carbon (AC) to enhance the adsorption of ammonium ion in aqueous solution. Sodium dodecyl sulfate (SDS), sodium dodecyl benzene sulfonate (SDBS) or sodium octanoate (SO) was used for the modification. At the initi...

This paper accomplishes a broad survey of the salting effects of different ammonium salts on the aqueous polymer solutions. In order to cover a wide range of hydrophilic and hydrophobic nature of solutes, salts including ammonium chloride (NH4Cl), ammonium bromide (NH4Br), tetraethyl ammonium br...

To determine the structure of caprolactam tetrabutyl ammonium halide (F, Cl and Br) ionic liquids and the interaction of ionic liquids and solvents (water and ethanol), the effects of solvents on the electrical conductivity of ionic liquids were investigated at atmospheric pressure and temperatu...

Three week-old rainbow trout hatchlings (Oncorhynchus mykiss) were exposed to 0.5 μg/l or 2.0 μg/l bis(tri-n-butyltin)oxide (TBTO) for 21 days in a flowthrough system. After 7 and 21 days, tissue samples of the brain (tectum opticum and optic nerve) were taken and processed for electron micros...

Bis(triphenyltin) oxide was found to react with thiourea in refluxing acetonitrile to give bis(triphenyltin) sulfide, bis(triphenylstannyl)carbodiimide, and dicyandiamide. Bis(triphenylstannyl)carbodiimide was prepared by the reaction of bis(triphenyltin) oxide with cyanamide in refluxing aceton...

A single intraperitoneal injection of hexachlorophane into rats produced an increase in water in the brain and spinal cord. The additional fluid has been shown to contain sodium and chloride ions. The effect of hexachlorophane on some cerebral intermediary metabolites was also examined. Twenty-f...

Two crystal complexes of copper(I) chloride with tetravinylsilane (TVS) dimethyltetravinyldisiloxane (DMTVDS) were prepared and examined by IR spectroscopy and X-ray diffraction: sp. gr. P2/a, Z = 4, a = 13.428(1) Å, b = 7.9584(7) Å, c = 14.694(1) Å for [Cu4Cl4(TVS)]; sp. gr. P21/c, a = 10.505(1...

The formation of negative ions following low energy (0–12 eV) electron attachment to the title compounds is studied in a crossed electron-molecular beam experiment applying mass spectrometric detection of the anions. All silane derivatives presently studied are weak electron scavengers which al...

The photochemical reaction of tetracarbonyl(tetravinylsilane)iron with Fe(CO)5 yields hexacarbonyl(tetravinylsilane)diiron, which is characterized by an X-ray structural study.

Plasma-polymerized tetravinylsilane films deposited on silicon wafers by PECVD at different powers using pulsed plasma were analyzed by both typical conventional depth sensing and by cyclic nanoindentation. A comparative study of the two methods was carried out under reduced system drift. It was...

Plasma polymer films of tetravinylsilane were deposited on silicon wafers using an RF glow discharge operated in pulsed mode. Microscopic and spectroscopic techniques revealed that physico-chemical properties of plasma polymer depend on the effective power used if the flow rate was constant. The...

Plasma-polymerized tetravinylsilane was used to surface modify glass fibers to improve interfacial adhesion of a GF/polyester composite. Plasma polymer films of controllable thickness and physicochemical properties were deposited on unsized glass fibers by RF pulsed plasma using an effective pow...