This study was designed to examine the in vitro antioxidant activities of the essential oil and methanol extracts of rhizoma Alpinia officinarum (small galanga) from China. The essential oil was analyzed by gas chromatography/ mass spectrometry (GC/MS) and 46 constituents were identified. Methanol extract from rhizoma A. officinarum was fractionated by chromatography of silica gel using ethyl a...

although antidote development should proceed in an orderly fashion from observation, to experimental and safety studies, to clinical trials, this sequence is not always precisely followed. the development of fomepizole as an antidote for toxic alcohol and glycol poisoning is an example of how this may not be the case. interest in the development of fomepizole was spurred in the 1960s. shortly t...

background: toxic alcohol poisonings are responsible for high mortality and morbidity in russia. this study was aimed to evaluate the trends of harmful ethanol (etoh) drinking as well as methanol (meoh), isopropanol (ipa) and ethylene glycol (eg) poisonings in the middle urals region of russia. methods: in this retrospective study, the medical records of patients poisoned with meoh, ipa and eg ...

the occurrence of blindness after drinking some herbaceous distillates is created some anxieties in iran. in this study, the effectiveness of concentration of khalvash distillate was studied on the function of the new modified suggested chromotropic acid method for qualitative detection of methanol. for this purpose, three samples of khalvash distillate were purchased from vendors of rasht. acc...

Liquid-fed direct methanol fuel cells (DMFCs) are one of the most promising candidates for portable power electronics and automotive pplications due to their potentially high-energy density, simple storage, and distribution of the fuel. The concentration of methanol in the fuel irculation loop of a DMFC system is an important operating parameter, because it determines the electrical performance...

this paper investigates hollow and porous alumina nanospheres that were previously synthesized to be used for the dehydration of methanol to dimethyl ether (dme). as hollow nanostructures possess characteristics such as low density and high surface to volume ratio, their catalytic activity between hollow and porous structure is compared. for this purpose, three most important parameters (acidit...

in this study, preparation of nano-sized gamma alumina with high specific surface area and high yield by thereaction between aluminum nitrate and sodium carbonate, without using any surfactant is reported. bohemite (aluminum oxyhydroxide) was prepared as a precursor by strict control of ph and reaction temperature. the gel produced was purified by washing followed by centrifugation. the specifi...

conclusions the composition of unrecorded samples did not raise major toxicological concern beyond ethanol in alcohol products. however, concentration levels of methanol in some unrecorded alcohol samples made these samples detrimental for human consumption. results of 877 reports of alcohol samples, more than 50% were obtained from mashhad and the rest were from the suburbs. of the reports, 57...

introduction: alcohol poisoning is one of the main preventable causes of death, disability, and injury in many societies. ethanol and methanol are the most prevalent kinds of alcohol used. there is no any exact reports of alcohol poisoning and its outcome in iranian society. therefore, the present study was assessed the status of alcohol poisoning and its outcome in referees to the emergency de...

the palm wine trade is an important economic activity for many tropical rural areas worldwide. in west africa, palm wine holds high sociocultural and traditional values. wine tappers often climb very tall trees with rudimentary equipment to harvest palm sap and risk severe injuries in the event of a fall. furthermore, the wine quickly ferments beyond the desired taste and alcohol content, reduc...