background: the use of natural products as anticancer and antioxidant agents has a long history. several drugs currently used in chemotherapy were isolated from plant species. objective: the aim of this study was to evaluate cytotoxicity and antioxidant activity as well as phenol and flavonoid contents of five plant species of solanaceae family. methods: five plant species of solanaceae family ...

In the present study experiments were carried out to determine the total phenolic content and their comparative antioxidant activities in relation to phenol content employing Folin-ciocalteu, DPPH, and ABTS assays of the different solvent extracts of the plant S. macrosperma. It was found that on an average, the plant extract with higher levels of phenol content had higher antioxidant activity....

The genus Phoenix is one of the most widely cultivated groups of palms around the world. The aim of this study was to determine the antioxidant activity and total phenolic compounds of 14 different varieties of date palm (Phoenix dactylifera L., Arecaceae) seed extracts with 5 solvents [water, methanol, methanol (50%), DMSO, and water: methanol: acetone: formic acid (20:40:40:0.1)]. Ferric redu...

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...

Most phenolic substances of plant origin are toxic to microorganisms and they confer some degree of protection to plants against phytopathogens. Xanthomonas oryzae pv. oryzae, bacterial blight pathogen of rice (Oryza sativa) was treated with phenol (monohydroxy benzene) and its effects on the morphology and cytological changes of the bacterium were studied. Total lysis of cells occurred with 5 ...

The present study aimed to investigate the phenol content and antioxidant activity of a non-conventional Curcuma sp. namely, Curcuma caesia in comparison with another species, Curcuma amada. The total phenol contents of the methanolic rhizome extracts of C. amada and C. caesia were 37.64 and 44.33 mg Tannic acid equivalents (TAE)/g dry material, respectively. The reducing power, and superoxide,...

Objective(s):The current study was aimed to determine the bioactive constituents and biological effects of the Crataegus monogyna ethanolic extracts from bark, leaves and berries on hypercholesterolemia. Materials and Methods: Oleanolic acid, ursolic acid, quercetin and lupeol concentrations were quantified by HPLC. Total phenol content and radical scavenging activity of extracts were also mea...

recent investigations have shown that plants have antioxidant properties and could decrease oxidative stress in different human diseases. the present work was identified the chemical composition compounds and evaluated the various antoxidative activities of ferula-assa-foetida leaves hydroalcoholic extract (flhe) and ferula-assa-foetida leaves essential oil (fleo) . radical scavenging activity ...

Mentha pulegium which is locally know as Al-Medina mint, is used in herbal teas or as additives in commercial spice mixtures for many foods to offer aroma and flavor. The objectives of this study were to examine the antioxidant activity and the total phenol and flavonoids contents of Mentha pulegium methanol extract. The In vitro antioxidant activity of Mentha pulegium methanol extract was eval...