Voltammetric techniques have been considered as important methods among the analytical techniques used for the identification and determination of trace concentrations of many biological molecules such as L-ascorbic acid (AA). L-ascorbic acid is an electro-active molecule, though it is difficult to determine its value directly with a majority of electrodes made of carbon and transition metals, ...

Voltammetric techniques have been considered as important methods among the analytical techniques used for the identification and determination of trace concentrations of many biological molecules such as L-ascorbic acid (AA). L-ascorbic acid is an electro-active molecule, though it is difficult to determine its value directly with a majority of electrodes made of carbon and transition metals, ...

a sensitive procedure for determining total vitamin c (ascorbic acid + dehydrate ascorbic acid) in a blood drop from a finger prick, before and after the adminis- tration of a vitamin c tablet is described. analysis was carried out by high per- formance liquid  chromatography with  electrochemical detection (hplc/ec). measurements were taken one hour, two hours and six hours after the administr...

Salinity is one of the most abiotic stress destructive factors which limit growth and production of date palm offshoots considerably. In order to investigate the effects of antioxidant compounds on growth parameters as indicters to salt tolerance at the date palm offshoots cultivars of Kabkab (female) and Ghannami ahmer (male). Experiment was conducted with seven treatments and four replication...

Cyclophosphamide is an anticancer drug with immunosuppressive activities. Considering various reports on the possible antioxidant/protective functions of ascorbic acid, it is aimed at to explore the modulatory effect of ascorbic acid on therapeutic efficacy as well as mutagenic potentials of cyclophosphamide in the same tumor bearing mice. Swiss albino mice with ascites Dalton’s lymphoma were u...

The present investigation is design to determine the chemical composition of the essential oil of Eucalyptus camaldulensis grown in Egypt and to study its antioxidant and cytotoxic effects on different cancer and normal cell lines. The analysis of E. camaldulensis oil using GC/MS resulted in the identification of 43 compounds. The current results indicated that the essential oil has weak radica...

Baccharis trimera is a plant popularly used as a tea and to treat gastrointestinal diseases and inflammatory processes as well. The total phenolic content was determined and the antioxidant and anti-inflammatory activities of six extracts (dichloromethane, ethyl acetate, butanol, aqueous, saponin and phenolic) from B. trimera were evaluated. Using carrageenan-induced pleurisy as a model of acut...

Objective: The present study was an attempt to study total phenolic content and antioxidant property of the crude ethanolic extract of the roots of Azadirachta indica (A. indica). Materials and Methods: To evaluate the antioxidant properties of the crude extract, some complementary test systems, namely DPPH free radical scavenging assay, reducing power assay, and ferrous ion chelating ability a...