نتایج جستجو برای: dispersed solvent extraction dnpdse contractor

تعداد نتایج: 239675  

Journal: :international journal of advanced biological and biomedical research 2013
mehran moradalizadeh naghmeh samadi peyman rajaei

the genus haplophyllum, which belongs to the rutaceae family, includes 18 species in iran. in this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of haplophyllum robustum bge. were extracted by three different isolation techniques, conventional hydrodistillation (hd), microwave-assisted hydrodistillation (mahd) and solv...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
elahe maghsoudlou reza esmaeilzaadeh kenari zeinab raftani amiri

recently, subcritical water extraction (swe) has been well known as a green technology for extraction of bioactive compounds from plants. in this study, subcritical water extraction, ultrasound assisted extraction (uae) and shaker solvent extraction (sse) were compared for extraction of phenolic compounds from fig (ficuscarica) pulp and skin. antioxidant activity of the extracts was evaluated u...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
e. milani h. poorazarang sh. vatan khah h. vakilian

inulin is widely used in functional foods throughout the world for its health-promoting and technological properties. helianthus tuberosus is cultivated widely in the northern part of iran. helianthus tuberosus can be a valuable source of inulin. to optimize conventional extraction of inulin, various combinations of time, temperature, and solvent: solid ratio, were used. in this research, a ser...

2010
E. V. Lau S. Gan H. K. Ng

This paper aims to provide a review of the analytical extraction techniques for polycyclic aromatic hydrocarbons (PAHs) in soils. The extraction technologies described here include Soxhlet extraction, ultrasonic and mechanical agitation, accelerated solvent extraction, supercritical and subcritical fluid extraction, microwave-assisted extraction, solid phase extraction and microextraction, ther...

2006
TATSUYA SEKINE

The ability of a solute (inorganic or organic) to distribute itself between an aqueous solution and an immiscible organic solvent has long been applied to separation and purification of solutes either by extraction into the organic phase, leaving undesirable substances in the aqueous phase; or by extraction of the undesirable substances into the organic phase, leaving the desirable solute in th...

2011
Don Melillo

Supercritical fluids extraction of emulsions (SEE) is an innovative technique used for the production of micro, nano-particles with controlled size and distribution. Supercritical carbon dioxide (SC-CO2) is used to extract selectively the organic solvents from the droplets of the emulsion, in which the biopolymer is dissolved, producing the precipitation of the polymer and the subsequent format...

2012
D. K. Pandey R. M. Banik

Gloriosa superba is a medicinal plant used in traditional medicine for the treatment of various diseases. The tuber of Gloriosa superba is a rich source of colchicine which is used for the treatment of gout, cirrhosis and also used in plant breeding studies to produce polyploidy. Optimization of various extraction parameters using response surface methodology (RSM) was performed to assess maxim...

Journal: :Journal of chromatographic science 2014
Dandan Han Baokun Tang Kyung Ho Row

A sensitive determination method was developed for the analysis of pyrethroid pesticide residues in tomato samples using ionic liquid-based dispersive liquid-liquid microextraction. A hydrophobic ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate) and acetonitrile were used as the extraction solvent and dispersive solvent, respectively. The following experimental parameters affecting...

Journal: :iranian journal of pharmaceutical sciences 0
fatemah atyabi department of pharmaceutics, faculty of pharmacy, tehran university of medical sciences, tehran, iran afsaneh mohammadi department of pharmaceutics, faculty of pharmacy, tehran university of medical sciences, tehran, iran rassoul dinarvand department of pharmaceutics, faculty of pharmacy, tehran university of medical sciences, tehran, iran

the purpose of this study was to prepare and characterize nimodipine loaded microspheres using ethyl cellulose (ec) as a carrier polymer through an emulsion solvent evaporation method. these evaluations characterized the pattern of drug release from prepared microspheres. nimodipin loaded microspheres were prepared using an emulsification solvent evaporation method. the effect of process variab...

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