Now showing items 1-10 of 2397
Multivariate Optimization of Pressurized Solvent Extraction of Alkylphenols and Alkylphenol Ethoxylates from Biosolids
(Sociedade Brasileira de Química, 2012)
In this study, a methodology for pressurized solvent extraction of alkylphenols (APs) and alkylphenol ethoxylates (APEOs) from biosolids was optimized by utilizing a biosolid natively containing these compounds at a high ...
Evaluation of solvent effect on the extraction of phenolic compounds and antioxidant capacities from the berries: application of principal component analysis
(Biomed Central Ltd, 2014-08-22)
Background: This study evaluated the effect of the solvent on the extraction of antioxidant compounds from black mulberry (Morus nigra), blackberry (Rubus ulmifolius) and strawberry (Fragaria x ananassa). Different extracts ...
FURTHER STUDIES ON THE SOLVENT EXTRACTION OF COPPER (II) WITH DITHIOCARBOXYLATE DERIVATIVES OF PYRAZOL
(Sociedad Chilena de Química, 2001)
Extraction of sunflower oil using ethanol as solvent
The ethanolic extraction of oil from sunflower collets was studied and compared with previous data where hexane was used as extraction solvent. First, the extractive power of ethanol was determined by Soxhlet. It gave a ...
Assisted extraction of rosemary antioxidants with green solvents
The use of natural antioxidants in the food industry has increased in the last years and there is a growing interest in improving the extraction processes using GRAS (general recognize as safe) solvents. In this work the ...
Integrated Pressurized Solvent Extraction-Cleanup for the Rapid Determination of Polychlorinated Biphenyls in Meat Samples
(Sociedade Brasileira de Química, 2013)
A rapid and efficient method based on the integration of pressurized solvent extraction (PSE) with solid phase extraction (SPE) cleanup and gas chromatography system with electron capture detection (GC-ECD) has been developed ...
Evaluation of different solvent on paprika oleoresin extraction
(Inst Tecnologia Parana, 1993-01-01)
The best solvent for paprika oleoresin extraction was determined by comparison with a commercial oleoresin. Pigment composition was determined by HPLC. The solvent system hexane/acetone/isopropilic alcohol (3:2:1) shown ...
Deacidification of Soybean Oil Combining Solvent Extraction and Membrane Technology
(Hindawi Publishing Corporation, 2013-10)
The aim of this work was to study the removal of free fatty acids (FFAs) from soybean oil, combining solvent extraction (liquid-liquid) for the separation of FFAs from the oil and membrane technology to recover the solvent ...
The solvent extraction separation of molybdenum and copper from acid leach residual solution of Chilean molybdenite concentrate
A procedure for recovery and separation of molybdenum (VI) and copper (II) from acid leaching residual solution of Chilean molybdenite concentrate by solvent extraction is studied. The process for the recovery of metals ...