A procedure was evaluated for the extraction of 16 free fatty acids (FFAs) from liver. Ultrasonic energy was used for the extraction and the variables affecting the extraction efficiency were investigated. The best conditions for extraction were: 2 mL isopropanol-n-hexane (3:2, v/v), 20 min and 80 w. Recoveries ranging from 87.00 to 120.00% were obtained under the optimum conditions, and the li...

The susceptibility of the carbonyl group towards nucleophilic attack affords construction various organic compounds. Thus, investigations activation applying greener methodologies are highly important. In present work, among investigated N-halo compounds, N-fluorobenzenesulfonimide (NFSi) has been found as an efficient and selective catalyst in reaction direct esterification aryl alkyl carboxyl...

Oxysterols and cholestenoic acids are oxidised forms of cholesterol with a host of biological functions. The possible roles of oxysterols in various neurological diseases makes the analysis of these metabolites in the central nervous system of particular interest. Here, we report the identification and quantification of a panel of twelve sterols in mouse cerebrospinal fluid (CSF) using liquid c...


 High rice production produces a high amount of waste, especially bran (~10%), suitable as cooking oil. This study was performed to investigate the dried at different temperatures and times for stabilization treatment oil extracted using Soxhlet Ultrasonic-assisted extraction (UAE). The produced highest yield (31.9%) β-carotene (7.82%) than control after stabilized 50 ºC 1 h. Unstabilized...

Recombinant human erythropoietin (EPO) is the main therapeutic glycoprotein for treatment of anemia in cancer and kidney patients. The in-vivo activity EPO carbohydrate-dependent with number sialic acid residues regulating its circulatory half-life. carries three N-glycans thus obtaining pure glycoforms provides a major challenge. We have developed robust reproducible chemoenzymatic approach to...

the perovskite-structured la2cuo4 nanoparticles (lco nps) have been synthesized via an ultrasonic-assisted co-precipitation route using octanoic acidas organic surfactant, and the phase composition, morphology, lattice parameters and size of nanoparticles  are characterized through fourier transform infrared spectroscopy (ft-ir), x-ray diffraction (xrd), scanning electron microscopy (sem) and t...

A preliminary study on statistical modelling of a process for depolymerisation of cassava non-starch carbohydrate using halide salt assisted phosphoric and pyruvic acids were accomplished. The effects of three independent variables namely; acid concentration, potassium iodide salt and duration were studied using the central composite rotatable design on hydrolysis of the cassava non-starch carb...