نتایج جستجو برای: organic solvent

تعداد نتایج: 246575  

2017
Sung-Won Kang Hye-Min Kim M. Shafiur Rahman Ah-Na Kim Han-Sul Yang Sung-Gil Choi

Defatted bovine liver (DBL) is a potential source of protein and minerals. Supercritical carbon dioxide (SC-CO2) and a traditional organic solvent method were used to remove lipid from bovine liver, and the quality characteristics of a control bovine liver (CBL), bovine liver defatted by SC-CO2 (DBLSC-CO2) at different pressures, and bovine liver defatted by organic solvent (DBL-OS) were compar...

2010
SANTOSH KUMAR O. D. GUPTA

The polarographic study of Cd(II) with L-Tyrosine has been investigated in aqueous organic solvent mixtures at 300K. The Dimethyl sulphoxide and Dimethyl formamide solvents have been used with water to study the effect of solvents on the stability of complexes. Cadmium(II) formed 1:1, 1:2 and 1:3 complexes with L-Tyrosine in the aqueous-organic solvent mixture i.e. DMSO and DMF. The stability c...

2009
Xenia Amashukeli Frank Grunthaner Steven Patrick James Kirby

An apparatus for extracting organic compounds from soils, sands, and other solid matrix materials utilizes water at subcritical temperature and pressure as a solvent. The apparatus, called subcritical water extractor (SCWE), is a prototype of subsystems of future instrumentation systems to be used in searching for organic compounds as signs of past or present life on Mars. An aqueous solution g...

2015
Alankriti Bajpai Arindam Mukhopadhyay Manchugondanahalli Shivakumar Krishna Savitha Govardhan Jarugu Narasimha Moorthy

An Mn metal-organic framework (Mn-MOF), Mn-L, based on a pyrene-tetraacid linker (H4 L), displays a respectable fluorescence quantum yield of 8.3% in spite of the presence of the paramagnetic metal ions, due presumably to fixation of the metal ions in geometries that do not allow complete energy/charge-transfer quenching. Remarkably, the porous Mn-L MOF with ∼25% solvent-accessible volume exhib...

Journal: :Chemical communications 2011
Lei Qian Adham Ahmed Haifei Zhang

A simple and generic method is developed to form organic nanoparticles in porous materials by solvent evaporation. The composites can be readily dissolved in water to produce aqueous organic nanoparticle dispersions.

2011
Teresa A. Johnson Gerald K. Sims

Slow equilibration of introduced chemicals through tortuous pore space limits uniform substrate distribution in soil biodegradation studies. The necessity of introducing poorly soluble xenobiotics via organic solvents, the volume of which is minimized to limit toxicity, likely also affects xenobiotic distribution. Our objective was to investigate relative effects of carrier solvent choice and v...

Journal: :Bioscience, biotechnology, and biochemistry 2003
Wakako Tsuzuki Akemi Ue Akihiko Nagao

For developing further uses of lipase as a biocatalyst, its hydrolytic activity toward some esters was investigated in a miscible solution composed of a buffer and a polar organic solvent. Twenty percent dimethylformamide, 35% dimethylsulfoxide, 15% 1,4-dioxane, 15% dimethoxyethane, and 2% diethoxyethane promoted the hydrolysis by a lipase from Rhizomucor miehei toward some hydrophobic substrat...

Journal: :The Journal of biological chemistry 1950
G W E PLAUT S A KUBY H A LARDY

The isolation and purification of phosphoric esters are usually accomplished by the fractional precipitation of their metallic salts. This method has been extremely useful and has led to the isolation of a large number of biologically important phosphorus compounds. However, some types of compounds are merely separated by this procedure into groups from which the individual members cannot be re...

2015
Cherng-Yuan Lin Paul L. Chen

Lipids were extracted from Isochrysis galbana using a microwave-assisted method accompanied by various types of organic solvents. The effects of organic solvent type and microwave input energy on the fatty acid characteristics of the extracted lipids and their biodiesel product were investigated. Variations in the characteristics of the lipids extracted using a combination of n-hexane and iso-p...

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