This article carried out the extraction of sesame oil by using three extraction techniques: supercritical fluid extraction (SFE), Soxhlet and sequential extraction. The SFE was performed using supercritical carbon dioxide (SC-CO2) as solvent and ethanol as cosolvent. Tests were performed at 20 MPa, 35°C and a flow rate of 2.5 g CO2/min with a total extraction time of 210 minutes. The Soxhlet ex...

Produced water is present in oil and natural gas reservoirs transported to the surface along with oil. Total grease content (TOG) main parameter evaluated this waste disposal category. Today, validation of methods laboratory not done using petroleum. The objective work was develop synthetic oily standards that can be applied for internalization laboratory. Oil weighing protocols, influence vola...

Fat which has been synthesized by rats from carbohydrates is characterized by the presence of large amounts of Cl6 fatty acids (1). In such synthetic depot fat, the total (716 acids constitute 40 to 45 per cent of the total mixed acids. The value for the Cl6 acids is approximately 25 per cent when fat is present in the animal’s diet and is being deposited directly. A particularly striking incre...