We present the detection of ethanol (C2H5OH), acetone (CH3COCH3), and propanal (C2H5CHO) toward cyanopolyyne peak TMC-1. These three O-bearing complex organic molecules are known to be in warm interstellar clouds, but had never been observed a starless core. The addition these new pieces puzzle cold clouds stresses rich chemical diversity dense cores stages prior onset star formation. detection...

Antibacterial activities of aqueous, acetone, ethanol and methanol extracts of fruits of Helicteres isora (Mororphali) were studied. The fruit aqueous extracts of H. isora showed prominent antibacterial activities against E. coli, Staphylococcus epidermidis, Salmonella typhimurium and Proteus vulgaris; moderate activity against Enterobacter aerogenes, Staphylococcus aureus, Salmonella typhi and...

Arabian deep-sea red shrimp Aristeus alcocki is considered to be an ideal source of pigments, especially astaxanthin, and its analogs. Extraction pigments from exoskeleton discards A. was analyzed by using organic solvents, namely, n-hexane, acetone, ethyl acetate, methanol, ethanol under cold hot conditions. A significantly greater yield obtained acetone: methanol (1:1 v/v) (10.4-10.9%) (9.3-9...

Based on ethnopharmacological information, four different varieties of seeds were obtained from authentic seed suppliers. Ethanol, methanol, acetone, chloroform and petroleum ether seed extracts were assessed for antibacterial activity against wound isolates of Multi Drug Resistant Methicillin Resistant Staphylococcus aureus (MDR-MRSA). Ethanol, methanol and acetone extracts of Moringa oleifera...

Anionic detergents have been shown to lower markedly the differential-pulse voltammetric peak currents obtained for 12-molybdophosphate and 12molybdosilicate in aqueous solutions, but when ethanol water or acetone water (1 + 1 V / V ) solutions are used there is no interference. Static differential-pulse voltammetric and flow injection voltammetric procedures have been developed for the determi...

the subject handled in this study is the determination of antioxidant activities of extracts obtained from the urginea maritima (l.) baker plant’s leaves and tubers. extractions which were obtained using various solvents as methanol, ethanol, acetone and benzine. the antioxidant activity of the extracts was determined using β-karotene-linoleic acid system. moreover, the free radical scavenging ...

Sesbania grandiflora (L.) Pers. is a soft-wooded tree belonging to the family Leguminoseae. Leaves are considered to be excellent sources of vitamin C and calcium The antioxidant activity of 70% acetone and 50% ethanol extracts of leaves of Sesbania grandiflora were determined by DPPH radical scavenging method. Among the two different extracts acetone extract was found to be more efficient.

The development of contact hypersensitivity (CHS) greatly depends on the allergenicity of the inducing agent. However, various cofactors are known to influence the outcome of the response as well. From this perspective, we have compared the effects of five different vehicles: acetone, ethanol, dimethyl formamide (DMF), dimethyl sulfoxide (DMSO), and a 4 to 1 mixture of acetone and olive oil (AO...

In this study is presented a general methodology to predict the performance of a continuous near-critical fluid extraction process to remove compounds from aqueous solutions using hollow fiber membrane contactors. A comprehensive 2D mathematical model was developed to study Porocritical extraction process. The system studied in this work is a membrane based extractor of ethanol and acetone from...

The response of the Intoxilyzer 8000C (version approved for evidentiary breath alcohol testing in Canada) to volatile solvents in vitro is described. Acetone, isopropanol, and methanol were prepared as aqueous solutions or dilutions of standard alcohol solution (SAS; 1.21 mg ethanol/mL) to generate apparent blood ethanol concentrations (aBEC) of 50 or 80 mg/dL. Solvent concentrations examined w...