Antioxidant activity of a selection of commonly occurring wild plants growing in Beni-Sueif governorate, Upper Egypt, has been tested. The plants selected are Tamarix nilotica, Ambrosia maritima, Zygophyllum coccenium, Conyza dioscoridis, Chenopodium ambrosioides, and Calotropis procera. The in vitro antioxidant assays used in this study were 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scaven...

A dose-related inhibition by halothane of adenosine diphosphate-induced platelet aggregation was measured for human platelets in plasma anticoagulated with sodium citrate 6.8 mmol litre-1 or 13.6 mmol litre-1, or heparin 2 u. ml-1 and for platelets separated from plasma by albumin density gradient centrifugation and requiring no anticoagulant. By maintaining exposure and assay temperature at 37...

To investigate the biological activities of anthocyanins, which are induced by cadmium in A. imbricata, the antioxidant properties of anthocyanins were investigated using various antioxidant assays, namely 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2,2'-azinobis-(3-ethylbenzthiazoline-6sulfonic acid) (ABTS) radical scavenging activity, reducing power, and β-carotene bleac...

During preparation of total RNA from Nylanderia pubens (Forel) (Hymenoptera: Formicidae) workers for use in expression library construction, severe RNA degradation consistently occurred. This degradation was masked by spectrophotometric analysis but clearly evident by microfluidic-based assay. Although not specifically identified, the degrading entity was endogenous and localized to the abdomen...

This study investigated the antioxidant activity of methanol (MeOH) and water extracts from roots of Cirsium japonicumin vitro. MeOH extract showed a stronger free radical scavenging activity than water extract. However, both of extracts showed a concentration dependent hydroxyl radical scavenging activity, reducing power and metal chelating ability. MeOH extract had greater phenolic and flavon...

in this research a pot experiment was carried out to investigate the remediation ability of e. camaldulensis dehnh inlead-zinc (pb-zn) contaminated soil. the study also investigated the effects of ethylenediaminetetraacetic acid(edta) and diethylenetrinitrilopentaacetic acid (dtpa) on the phytoremediation efficiency of the plant species, andharvest time as a suitable dose of chelating agents wa...

Siderophores are iron chelating substances that are also known to bind metals such as Molybdenum and Lead. The pigment produced by P. fluorescens is a siderophore whose ability to bind to different metal ions was investigated in this study. Pigment production was increased in the presence of Sodium, Potassium, Lead, Molybdenum and Cadmium. Siderophores were detected using CAS assay and catechol...

total phenolic contents (tpc) of five different extracts (petroleum ether, dichloromethane, ethyl acetate, ethanol and ethanol-water) of artemisia biennis willd were measured in this work. the antioxidant activity was investigated by three different methods: β-carotene bleaching (bcb) test, 2,2-diphenyl-1-picrylhydrazyl (dpph) radical scavenging method and ferrous ion chelating (fic) assay. amo...

The present study was designed to evaluate the biological potentials and phenolic composition of different parts Glaucosciadium cordifolium, which is less investigated known as a wild endemic species Turkey. antioxidant activity plant determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-Azinobis-(3-Ethylbenzthiazolin-6-Sulfonic Acid) (ABTS), iron chelating capacity, ?-carotene / linoleic...