three native turkish medicinal and aromatic plants (artemisia absinthum, artemisia santonicum and saponaria officinalis) were investigated to analyze their antioxidant activity, total phenolic content and antimicrobial activity. their total antioxidant activity was determined by using a β-carotene bleaching assay and their antimicrobial activity was determined by utilizing an agar disc diffusio...

This study investigated the potential biological activities by determining antioxidant (DPPH Assay), antibacterial (Agar-well Diffusion Method), and antiquorum sensing (Crystal Violet based Microtitre Plate Biofilm Assay) of selected wild tea leaves Mt. Province, namely: Cinnamomum mercadoi S. Vidal, Gaultheria leucocarpa var. cumingiana (S.Vidal), Clausena sanki (Perr.) J.F. Molino mollis (Mer...

Research on the effect of processing on the retention of bioactive components with potential antioxidant activity is gaining importance. The objective of this investigation was to evaluate the effect of various processing methods (milling, boiling, pressure cooking, roasting and germination respectively) on the antioxidant components as well as the antioxidant activities in the commonly used pe...

The present study was undertaken to assess in vitro antioxidant and immunomodulatory activity for methanolic extract of Ficus benghalensis Linn. aerial roots (MEFB). Antioxidant activity of (MEFB)was evaluated by reducing power assay and hydrogen peroxide assay. Immunomodulatory activity was evaluated for specific and non-specific immune response by using in vitro assays as plaque forming cell ...

Anogeissus latifolia is widely used in the Indian indigenous system of medicine and is reported to contain leucocyanidins and tannoid principles like ellagic acid and its derivatives. In view of its wide use and its chemical composition, this study was aimed at examining the antioxidant activity of the extract of A. latifolia. The extract was studied for total antioxidant capacity, hydrogen-don...

New sulfonamide and amide derivatives containing coumarin moieties; oxo-2H-chromen-sulfamoylphenylacetamides and oxo-2H-chromen-arylacetamides were synthesized starting from diverse 2-chloroacetamide derivatives and a wide range of coumarins. The structures of compounds were elucidated by IR and NMR spectra and also analytical elemental analysis. In the next step, the above mentioned compounds ...

This study was undertaken to examine the antioxidant activity of methanolic extract of seeds of Trigonella foenum-graecum seeds using DPPH free radical scavenging assay. The IC50 (The concentration of sample required to scavenge 50% of DPPH free radical) was calculated by plotting graph between % inhibition vs concentration. The Ascorbic acid was used as standard antioxidant in comparison to me...

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...

KARAMAĆ M., BUCIŃSKI A., PEGG R. B., AMAROWICZ R. (2005): Antioxidant and antiradical activity of ferulates. Czech J. Food Sci., 23: 64–68. Antioxidant and antiradical activities of ferulates (i.e., ferulic acid, isoferulic acid, coniferyl aldehyde, and methyl ferulate) were investigated using a β-carotene-linoleate model system and a DPPH radical scavenging assay, respectively. Compounds so te...

This paper reports the protective effect of the phenolic fraction extracted from extra virgin olive oils (OOPEs) against the cytotoxic effects of reactive oxygen species in human erythrocytes and Caco-2 cells, employed as model systems. Pretreatment of cells with various OOPEs, indeed, provides a remarkable protection against oxidative damages: this effect was strictly dependent on the o-diphen...