نتایج جستجو برای: total polar compounds

تعداد نتایج: 1047019  

A.R. Gohari H. Hajimehdipoor S. Saeidnia Y. Ajani

Herbal medicines can be used as the potential sources of anti-oxidative compounds to help the treatment of diseases associated to oxidative stress. In this paper, the Ferric Reducing Antioxidant Power (FRAP) activity of four Lamiaceae herbal extracts, which traditionally applied in oxidative stress related diseases, has been evaluated and total phenolics contents of these extracts determined by...

Journal: :Annals of botany 2005
Lukas Schreiber

BACKGROUND The plant cuticle is an extracellular lipophilic biopolymer covering leaf and fruit surfaces. Its main function is the protection of land-living plants from uncontrolled water loss. In the past, the permeability of the cuticle to water and to non-ionic lipophilic molecules (pesticides, herbicides and other xenobiotics) was studied intensively, whereas cuticular penetration of polar i...

Journal: :iranian journal of pharmaceutical research 0
ar shafaati bj clark

deproteinisation with acetonitrile (along with methanol or other reagents) is a useful and rapid technique in analysis of drugs or their metabolites in human serum. in this paper application of this simple technique in biopharmaceutical analysis using capillary electrophoresis (ce) is evaluated. some drugs with different ionic and protein binding properties were selected and dissolved in human ...

Journal: :research in pharmaceutical sciences 0
v hajhashemi l saghaei a fassihi h mojiri-froshani

derivatives of pyridine-4-one are iron chelators with various biological activities including antifungal, anti-malarial, antiviral, anti-inflammatory and analgesic activities. this study was aimed to evaluate the analgesic effect of four new derivatives of 3-hydroxy pyridine-4-one in animal models. acetic acid-induced writhing and formalin tests were used to assess the analgesic activity in mal...

Journal: :avicenna journal of phytomedicine 0
faride hesam faculty of food science, islamic azad university, shahreza branch, isfahan, shahreza, i. r. iran gholam reza balali department of potato research biotechnology, university of isfahan, i. r. iran reza taheri tehrani department of potato research biotechnology, university of isfahan, i. r. iran

objectives: potato (solanum tuberosum l.), as a whole food, contains high levels of vitamins and important antioxidants including phenolic acids, carotenoids and flavonoids. the objective of this study was to determine the total phenolic content and antioxidant activities of three common potatoes (solanum tuberosum) cultivars in iran i.e., savalan, agria and sante. materials and methods: phenol...

2013
B. Hermosin

Diesel soot, an important contributor to atmospheric aerosols, consists of a complex mixture of compounds. However, a very limited knowledge on the organic composition of aerosol and the water soluble fraction exists. A considerable portion of polar (oxygenated) organic compounds remained unanalysed, and additional analyses are needed to identify the polar compounds. Column fractionation of a d...

2011

Phospholipids are the main component of naturally occurring bilayers. These phospholipids include phosphatidylcholines (PC), phosphatidylethanolamines (PE) and phosphatidylserines (PS) [1]. The key common feature that bilayer-forming compounds share is their amphiphilicity ie., they have defined polar and non-polar regions. This is the reason the non-polar regions orientate themselves towards t...

2017
W. H. De Jeu F. Leenhouts

2014 The elastic constants, magnetic susceptibility, refractive index and density are reported for p,p’-diheptylazobenzene. The behaviour of the elastic constants of this non polar compound is very similar to that of related polar compounds. The anisotropy of both the static and the highfrequency permittivity is proportional to the anisotropy of the susceptibility, as observed earlier for the h...

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