Background: Herbal distillates had been used for many centuries as herbal medicine in Traditional Persian medicine. Recently, some studies claimed the presence of methanol in different types of herbal distillates which can cause different complications or even death as methanol is highly toxic. The main purpose of this study was to determine methanol content in the commonly-used industrial herb...

INTRODUCTION — Hydrocarbons are organic substances that contain carbon and hydrogen; they are liquid at room temperature [1] . All petroleum distillates (eg, kerosene, gasoline, mineral seal oils, and naphtha) are hydrocarbons; however, not all hydrocarbons are petroleum distillates. Hydrocarbons also often are mixed with agents that have systemic toxicity such as camphor, aniline dyes, heavy m...

Various distillates are treated with hydrogen gas during hydrotreatment in the presence of catalyst in order to reduce the sulfur and aromatic content of the product. Optimal hydrotreater performance is essential for producing Nynas specialty oils, in order to fulfill the planned production volume and to meet the product specification. Loss of catalyst activity is inevitable during the producti...

All sophisticated methods for direct determination of methanol require advanced instruments and high technical knowledge which preparing them is very expensive in none developed and developing countries. This work reports a simple and efficient qualitative technique for semi determination of methanol content in herbal distillates by a new modified chromotropic acid method. The technique is base...

by several observers for other rusts (2) has often been dletected in the distillates derived from stem rust uredospores. The fishy odor of fresh distillates frequently gives place upon dilution or storage to an odor more like the fragrance of flowers. If the odors and the biological activities of the preparations discussed in this paper are properties of the same compound(s), then the widesprea...

Phenolic compounds (benzoic and cinnamic acid derivatives) were determined by high-performance liquid chromatography with multiple wavelength detector (HPLC- -MWD) in grape marc distillates aged in Quercus petraea, Quercus robur and Quercus alba wooden barrels. In addition to colour indices and evaluable polyphenols, all samples were described by sensorial analysis. There were significant diffe...

Analysis of accelerants in fire debris involves the isolation of residual volatiles from the matrix and the analysis of these volatiles, usually by gas chromatography (GC). The resulting chromatograms are interpreted by comparing to a library of accelerant chromatograms obtained under similar conditions. This review first mentions ASTM's system in classifying fire accelerants into light petrole...

The objective of this study was to determine the efficiency of rye and barley starch hydrolysis in mashing processes using cereal malts as a source of amylolytic enzymes and starch, and to establish the volatile profile of the obtained agricultural distillates. In addition, the effects of the pretreatment method of unmalted cereal grains on the physicochemical composition of the prepared mashes...

All sophisticated methods for direct determination of methanol require advanced instruments and high technical knowledge which preparing them is very expensive in none developed and developing countries. This work reports a simple and efficient qualitative technique for semi determination of methanol content in herbal distillates by a new modified chromotropic acid method. The technique is base...

The article examines the geographical area delimited for production of Divine and specific characteristics physical-geographical conditions Călărași vineyard through prism different methods distillation wine distillates. Technological regimes distilling raw materials organoleptic physico-chemical indices such as: alcohol content, optical density, pH, aldehyde higher content volatile acid are sc...