Conversion of glycerol from biodiesel production to glycerol carbonate was studied by esterification with dimethyl carbonate in a non-catalytic supercritical condition. It was found that in a non-catalytic supercritical condition, glycerol at higher purity gave higher yield of glycerol carbonate at 98 wt% after reaction at 300 °C/20-40 MPa/15 min. The yield of glycerol carbonate was observed to...

We propose here a program of searches for degenerate electro-weakinos in various final state search topologies. In particular we emphasize the usefulness of searching for mass degenerate charginos and neutralinos in the mono-Z search channel. We demonstrate that the mono-Z search supercedes the mono-jet and mono-photon search topologies and present arguments using effective operators to explain...

Glycerol kinase plays a critical role in metabolism by converting glycerol to glycerol 3-phosphate in an ATP dependent reaction. In humans, glycerol kinase deficiency results in a wide range of phenotypic variability; patients can have severe metabolic and CNS abnormalities, while others possess hyperglycerolemia and glyceroluria with no other apparent phenotype. In an effort to help understand...

Penelitian ini dilakukan dengan tujuan untuk mengetahui tumbuh-tumbuhan yang digunakan dalam pembuatan minyak obat tradisional masyarakat Sandosi di pulau Adonara dan Lamatuka Lembata serta kandungan senyawa manfaat senyawa-senyawa terkandung. Metode penelitian yaitu wawancara jenis-jenis tumbuhan ramuan obat, analisis sampel menggunakan GC-MS. Hasil diperoleh bahwa yakni 3 jenis 45 tumbuhan. S...

Candida albicans accumulates large amounts of the polyols glycerol and d-arabitol when the cells are exposed to physiological conditions relevant to stress and virulence in animals. Intracellular concentrations of glycerol are determined by rates of glycerol production and catabolism and of glycerol uptake and efflux through the plasma membrane. We and others have studied glycerol production in...

Molecular dynamics simulations and infrared spectroscopy were used to determine the hydrogen bond patterns of glycerol and its mixtures with water. The ability of glycerol/water mixtures to inhibit ice crystallization is linked to the concentration of glycerol and the hydrogen bonding patterns formed by these solutions. At low glycerol concentrations, sufficient amounts of bulk-like water exist...

The levels of 1,3-propanediol dehydrogenase and of the glycerol dehydrogenase in Clostridium butyricum grown on glucose-glycerol mixtures were similar to those found in extracts of cells grown on glycerol alone, which can explain the simultaneous glucose-glycerol consumption. On glycerol, 43% of glycerol was oxidized to organic acids to obtain energy for growth and 57% to produce 1,3-propanedio...

Glycerolysis-interesterification can be used for the synthesis of products containing high total Mono- and Diacylglycerol (MDAG). Therefore, this study aimed to evaluate rich in MDAG content using glycerolysis-interesterification method High Shear Continuous Stirred Tank Reactor (HS-CSTR). The impact varying material flow rates (6, 10, 14, 18, 22 mL/min) processing time on concentration MDAG, p...