نتایج جستجو برای: assisted extraction mae and ultrasound

تعداد نتایج: 16910289  

Curcumin is the natural bio-active component of turmeric (Curcuma longa L.) with known therapeutic properties; nevertheless, its biological applications are limited due to its poor bioavailability. To overcome this limitation, curcumin was conjugated with silica nanoparticles. Curcumin was separated from turmeric by microwave-assisted extraction and silica nanoparticles were developed from rice...

Journal: :Molecules 2014
Ali Liazid Gerardo F Barbero Latifa Azaroual Miguel Palma Carmelo G Barroso

The stability of anthocyanins from grape skins after applying different extraction techniques has been determined. The following compounds, previously extracted from real samples, were assessed: delphinidin 3-glucoside, cyanidin 3-glucoside, petunidin 3-glucoside, peonidin 3-glucoside, malvidin 3-glucoside, peonidin 3-acetylglucoside, malvidin 3-acetylglucoside, malvidin 3-caffeoylglucoside, pe...

2017
Rawlings N. Akondi Ryan V. Trexler Susan M. Pfiffner Paula J. Mouser Shikha Sharma

Growing interest in the utilization of black shales for hydrocarbon development and environmental applications has spurred investigations of microbial functional diversity in the deep subsurface shale ecosystem. Lipid biomarker analyses including phospholipid fatty acids (PLFAs) and diglyceride fatty acids (DGFAs) represent sensitive tools for estimating biomass and characterizing the diversity...

2001
B. K. Kramer P. B. Ryan

The inadvertent ingestion of contaminated soil can be an important source of pesticide exposure, especially in young children. The actual level of a pesticide that is available for absorption into a biological system may be much lower than the overall contamination level due to the interaction of each chemical with the solid matrix. This bioaccessibility is dependent on characteristics of the c...

2016
Sun-Ae Kang Dong-Hee Kim Shin-Hyub Hong Hye-Jin Park Na-Hyun Kim Dong-Hyun Ahn Bong-Jeun An Joong-Ho Kwon Young-Je Cho

In this study, we compared the anti-inflammatory activity of Pinus koraiensis cone bark extracts prepared by conventional extraction and microwave-assisted extraction (MAE). Water extracts and 50% ethanol extracts prepared using MAE were applied to RAW 264.7 cell at 5, 10, 25, and 50 μg/mL of concentrations, and tested for cytoxicity. The group treated with 50 μg/mL of 50% ethanol extracts show...

2017
Yubo Wu Songyu Liu Rongfeng Liao

BACKGROUND This study aimed to evaluate the prediction accuracy of postoperative refractions using partial coherence interferometry (IOL-Master) and applanation ultrasound (AL-3000) assisted with corneal topography (TMS-4) in eyes that had undergone myopic laser-assisted in situ keratomileusis (LASIK). METHODS Haigis-L formula, Koch-Maloney method using Haigis formula, Shammas clinically deri...

Journal: :journal of chemical health risks 0
manoochehr bahmaei department of chemistry, north tehran branch, islamic azad university, tehran, iran faezeh khalilian department of chemistry, college of basic science, yadegar -e- imam khomeini (rah) branch, islamic azad university, tehran, iran hossein ali mashayekhi department of chemistry, tonekabon branch, islamic azad university, tonekabon, iran

in this study, simple and efficient ultrasound-assisted emulsification microextraction (usaeme) combined with gas chromatography-flame ionization detector (gc-fid) was developed for the preconcentration and determination of carbamazepine in biological samples. in this method, the fine droplets of 1-octanol were formed and dispersed in the sample with the help of ultrasonic waves, which accelera...

Journal: Nanochemistry Research 2016
Hame Sadat Faraji Hamid Reza Rajabi, Hoda Deris,

In the present study, a simple, efficient and fast synthetic strategy was reported for the green biosynthesis of silver nanostructures (i.e. nanoroads and nanoparticles) by the extract of Suaeda Acuminata plant, without any catalyst, template or surfactant. Aqueous extracts were obtained by maceration and microwave assisted extraction (MAE) methods. In MAE procedure, the effec...

2011
Renata Wietecha-Posłuszny Aneta Garbacik Michał Woźniakiewicz Paweł Kościelniak

The objective of this research was to develop, optimize, and validate a modern, rapid method of preparation of human hair samples, using microwave irradiation, for analysis of eight tricyclic antidepressants (TCADs): nordoxepin, nortriptyline, imipramine, amitriptyline, doxepin, desipramine, clomipramine, and norclomipramine. It was based on simultaneous alkaline hair microwave-assisted hydroly...

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