Buscar
Mostrando ítems 11-20 de 5713
Natural deep eutectic solvents and aqueous solutions as an alternative extraction media for propolis
(2019-11-01)
Ethanolic extracts of propolis are consumed for their health benefits even though direct consumption of alcoholic extracts is not always ideal. Natural Deep Eutectic Solvents (NADES) can potentially extract similar compounds ...
Deacidification of vegetable oil by extraction with solvent recovery
(Springer, 2019-04)
Deacidification of a vegetable oil by extraction and regeneration of the solvent by means of adsorption was studied. This novel approach to solvent regeneration is posed as an alternative to distillation in systems with ...
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 ...
Extração sem solvente de compostos bioativos de mirtilo assistida por ultrassom
(Universidade Federal de Santa MariaBrasilCiência e Tecnologia dos AlimentosUFSMPrograma de Pós-Graduação em Ciência e Tecnologia FarmacêuticasCentro de Ciências Rurais, 2018-03-02)
Conventional techniques for extracting bioactive fruit compounds employ long periods of extraction and high consumption of toxic solvents. However, there is growing interest in extracting safer, less toxic and environmentally ...
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 ...
Extraction and quantification of phenolic acids and flavonols from Eugenia pyriformis using different solvents
(2012-06-25)
The recovery of phenolic compounds of Eugenia pyriformis using different solvents was investigated in this study. The compounds were identified and quantified by reverse-phase high-performance liquid chromatography coupled ...
The solvent extraction separation of molybdenum and copper from acid leach residual solution of Chilean molybdenite concentrate
(1995)
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 ...
Avaliação de solventes de extração por ultrassom usando-se cromatografia líquida de alta eficiência para a determinação de hidrocarbonetos policíclicos aromáticos em solos contaminados
(Sociedade Brasileira de Química, 2009)
A method using ultrasonication extraction for the determination of 17 polycyclic aromatic hydrocarbons (PAHs), selected by the USEPA and NIOSH as "consent decree" priority pollutants, in soil by High Performance Liquid ...
Evaluation of different solvent on paprika oleoresin extraction
(Inst Tecnologia Parana, 2014)