the genus verbascum l. belongs to the family scrophulariaceae and includes plants that have been used widely in traditional medicine for a long time. methanolic extracts of three verbascum species from flora of iran were in vitro screened for their possible antioxidant activities by three complementary test systems, namely dpph free radical-scavenging, metal chelating activity and β-carotene/li...

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...

We evaluated the antioxidant properties of four main flavones from Scutellaria baicalensis: baicalein, wogonin and their glucuronides - baicalin and wogonoside. We used three in vitro assays: free radical scavenging with 2,2'-diphenylpicrylhydrazyl radical, transition metal ions reducing power by phosphomolybdenum assay and inhibition of the hydroxyl radical-induced peroxidation of linoleic aci...

As plants produce a huge amount of antioxidants they can represent a source of new compounds with antioxidant activities. From this point of view, the main goal of this research was to study the antioxidant activities of the Ficus carica through the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicalscavenging method. Since DPPH assay has been largely used as a quick, reliable, and reproducible parame...

The phytochemical analysis of the medicinal plant Kalanchoe pinnata was carried out to evaluate the antioxidant potential. Alcoholic extracts of the leaves was subjected to in vitro antioxidant activity screening models such as inhibition of metal ion chelating activity and hydrogen peroxide scavenging activity.EDTA is used as a standard for metal ion chelating activity and for hydrogen peroxid...

In present study, a series of isoxazole derivatives synthesized were evaluated for antimicrobial activities by disc diffusion method. Some compounds of the series exhibited promising antibacterial and antifungal activity compared to standard drugs. The minimum inhibitory concentration (MIC’s) was determined against each organism. The compounds were tested for their in-vitro antioxidant activity...

the present study was conducted to determine the antioxidant and antifungal effects ofmethanol extract from aerial part of verbascum speciosum. the total phenolic andflavonoid content and the antioxidant activity of the plant extract were determined byusing the folin-ciocalteau and the 2, 2-diphenyl-1-picrylhydrazyl (dpph) free radicalscavenging assays. the total phenols and flavonoid content o...

Background: Hemidesmus indicus is an important medicinal plant and extensively used in Ayurvedic and Unani system of medicine. The aim of the study was to evaluate the antioxidant, hypoglycaemic and hypolipidemic potential of methanolic extract of roots of Hemidesmus indicus (HIE) in streptozotocin (STZ) induced diabetic mice. Methods: HIE was analyzed by LC-MS to determine its phytochemical co...

Costus speciosus (Koen) J.E. Sm. plant and its extracts are used for treatment of fever, snake bites, jaundice, and as a purgative, astringent and antibacterial agent. In the present study, an attempt has been made to evaluate in vitro antioxidant activity of different extracts of this plant by DPPH radical scavenging activity, total antioxidant capacity, nitric oxide scavenging activity, ion c...

MeOH, EtOH, CHCl3 and aqueous extracts from the whole plant of wild Prunella vulgaris, a Kashmir Himalayan perennial medicinal herb, as well as from in vitro-regenerated plants were evaluated and compared for their antioxidant and antimicrobial properties. Antioxidant activity was screened by using various in vitro models: scavenging of the free radicals using DPPH, riboflavin photo oxidation, ...