نتایج جستجو برای: extraction time 1

تعداد نتایج: 4294492  

Journal: :journal of agricultural science and technology 0
a. dehghan sekachaei department of food science and technology, gorgan university of agricultural science and natural resources, gorgan, islamic republic of iran. a. sadeghi mahoonak department of food science and technology, gorgan university of agricultural science and natural resources, gorgan, islamic republic of iran. m. ghorbani department of food science and technology, gorgan university of agricultural science and natural resources, gorgan, islamic republic of iran. m. kashani nezhad department of food science and technology, gorgan university of agricultural science and natural resources, gorgan, islamic republic of iran. y. maghsoudlou department of food science and technology, gorgan university of agricultural science and natural resources, gorgan, islamic republic of iran.

ultrasound-assisted extraction was used to determine the optimum processing conditions and to achieve the maximum extraction yield and viscosity of the gum extracted from quince seed. using response surface methodology (rsm) to design the experiments and adopting the central composite rotatable design (ccrd), the effect of extraction temperature (25-55°c), time (3-10 minutes), and ph (6-8) were...

Journal: :Information & Software Technology 2023

Refactoring is a critical task in software maintenance, and usually performed to enforce better design coding practices, while coping with defects. The Extract Method refactoring widely used for merging duplicate code fragments into single new method. Several studies attempted recommend opportunities using different techniques, including program slicing, dependency graph analysis, change histor...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2010
behzad zolfaghari afsaneh yegdaneh

various novel techniques including ultrasound-assisted extraction, microwave-assisted extraction and supercritical fluid extraction have been developed for the extraction of medicinal plants in order to shorten the extraction time, decrease the solvent consumption, increase the extraction yield, and enhance the quality of extracts. this review was conducted to introduce and compare the conventi...

Journal: :analytical and bioanalytical chemistry research 0
abbas afkhami faculty of chemistry, bu-ali sina university, hamedan, iran massoumeh pirdadeh-beiranvand faculty of chemistry, bu-ali sina university, hamedan, iran tayyebeh madrakian faculty of chemistry, bu-ali sina university, hamedan, iran

a method based on the ultrasound-assisted solidification of floating drop microextraction technique was developed for the spectrophotometric and spectrofluorimetric determination of curcumin in turmeric powder. in this work a small volume of an organic solvent was floated on the surface of an aqueous solution. after sonication the organic solvent is solidified and separated. the effect of extra...

Journal: :journal of the iranian chemical research 0
ali niazi department of chemistry, faculty of science, islamic azad university, arak branch, arak, iran ahmad akrami department of chemistry, faculty of science, islamic azad university, arak branch, arak, iran elham sinka karimi department of chemistry, faculty of science, islamic azad university, arak branch, arak, iran fatemeh bagheban shahri department of chemistry, faculty of science, islamic azad university, arak branch, arak, iran

a cloud point extraction process using the nonionic surfactant triton x-114 to extracturanium from aqueous solutions was investigated. the method is based on the complexationreaction of uranium with arsenazo iii and micelle-mediated extraction of the complex. theoptimal extraction and reaction conditions (e.g., ph, reagent concentration, effect of time) werestudied, and the analytical character...

2011
Zhenbin Wang Zhongli Pan Haile Ma

The effects of different solvents, temperature conditions, solvent-solid ratios and particle sizes on solid-solvent extraction of the total phenolics, proanthocyanidins and flavonoids herein also referred to as antioxidant from pomegranate marc peel (PMP) was studied. Water, methanol, ethanol, acetone, and ethyl acetate extraction efficiencies at extraction times of 0.17 to 10 min, extraction t...

In this study, we demonstrate the application of newly developed magnetic potassium substituted hydroxyapatite (KHA/Fe3O4) for the extraction of phthalate esters (PE) from water samples. Nanoparticles of KHA were synthesized through an easy alkoxide–based sol–gel technique. The structure of nanocomposite was characterized by X–ray diffraction (XRD), Fourier transform infrared (FTIR) analysis, a...

Elham Ghasemi Mashaallah Rahmani, Massoud Kaykhaii Mohadeseh Tahernejad

In this paper, a new simple and effective method based on dispersive liquid–liquid microextraction procedure is proposed for rapid and simultaneous separation and preconcentration of ultra trace amounts of benzene, toluene, ethyl benzene and xylenes (BTEX) in non-alcoholic Beer samples. In this experiment, a glass syringe was used as extraction unit. With this simple configuration, the centrifu...

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