نتایج جستجو برای: polyethylene glycol assay

تعداد نتایج: 263323  

2014
Cristiane Mengue Feniman Moritz Vera Lúcia Mores Rall Margarida Júri Saeki Ary Fernandes Júnior

Essential oils (EOs) are technological options that may be employed in natural foods due to their antimicrobial activities. However, restrictions exist when high EOs concentrations are required which, in their turn, affect sensory qualities. Technological alternatives, such as combination of EOs with chelating and dispersing agents, have been proposed in the literature. Current research determi...

2016
Shokoofeh Hajihashemi Jan M. C. Geuns

Stevia rebaudiana is a sweet herb of the Astraceae family, which is cultivated for the natural sweeteners it contains. The aim of this study was to assess the effect of drought, simulated by the application of polyethylene glycol (5%, 10%, and 15% w/v), on the content of steviol glycosides (SVglys) and transcription levels of six genes involved in the biosynthesis of these natural sweeteners. T...

Journal: :Chemical & pharmaceutical bulletin 2010
Shahla Soltanpour Abolghasem Jouyban

Experimental solubilities of acetaminophen and ibuprofen in polyethylene glycol 600-water, ethanol-polyethylene glycol 600, and polyethylene glycol 600-water-ethanol mixtures at 25 degrees Celsius are reported. The solubilities of drugs in the presence of ethanol and polyethylene glycol 600 were increased. The Jouyban-Acree model was used to fit the solubility data of each drug in the binary mi...

Journal: :Clinical chemistry 1983
R F Butz P G Smith D H Schroeder J W Findlay

We evaluated the potential usefulness of 125I-labeled p-hydroxybupropion in a direct radioimmunoassay for bupropion in human plasma as compared with a currently used [3H]bupropion dextran-coated charcoal method. In both radioimmunoassay methods succinoylpropylbupropion antiserum was used that was highly specific for unchanged drug, cross reactivities with known bupropion metabolites being less ...

2018
Noor L.H. Bekkali Daniël R. Hoekman Olivia Liem Marloes E.J. Bongers Michiel P. van Wijk Bas Zegers Rolf A. Pelleboer Wim Verwijs Bart G.P. Koot Maksym Voropaiev Marc A. Benninga

OBJECTIVE The long-term efficacy and safety of polyethylene glycol (PEG) in constipated children are unknown, and a head-to-head comparison of the different PEG formulations is lacking. We aimed to investigate noninferiority of PEG3350 with electrolytes (PEG3350 + E) compared to PEG4000 without electrolytes (PEG4000). METHODS In this double-blind trial, children aged 0.5 to 16 years with cons...

Journal: :Applied and environmental microbiology 1980
F Kawai T Kimura Y Tani H Yamada M Kurachi

Polyethylene glycol (PEG) dehydrogenase in crude extracts of a PEG 20,000-utilizing mixed culture was purified 24 times by precipitation with ammonium sulfate, solubilization with laurylbetaine, and chromatography with diethylamino-ethyl-cellulose, hydroxylapatite, and Sephadex G-200. The purified enzyme was confirmed to be homogeneous by sodium dodecyl sulfate-polyacrylamide gel electrophoresi...

Journal: :Journal of chromatography. A 2015
Nuno R da Silva Luisa A Ferreira Pedro P Madeira José A Teixeira Vladimir N Uversky Boris Y Zaslavsky

Partition behavior of nine small organic compounds and six proteins was examined in poly(ethylene glycol)-8000-sodium sulfate aqueous two-phase systems containing 0.5M osmolyte (sorbitol, sucrose, trehalose, TMAO) and poly(ethylene glycol)-10000-sodium sulfate system, all in 0.01M sodium phosphate buffer, pH 6.8. The differences between the solvent properties of the coexisting phases (solvent d...

Journal: :Environmental Health Perspectives 1984
R L Schuler B D Hardin R W Niemeier G Booth K Hazelden V Piccirillo K Smith

Fifteen glycol ethers were investigated for their potential to cause adverse reproductive toxic effects using an in vivo mouse screening bioassay. Pregnant mice were orally dosed once per day on days 7 through 14 of gestation at concentrations causing 0 to 41% maternal mortality. Reproductive endpoints included pup survival in utero (percent of live litters/pregnant survivors), pup perinatal an...

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