The present study evaluates the phytochemical constituents, antimicrobial, antioxidant capacity, total phenolic content, ferrous ion chelating, tyrosinase inhibition, superoxide anion and nitric oxide radical scavenging activity of the leaf essential oil of Artemisia ciniformis Krasch. & Popov ex Poljakov.,from Iran. Oxygenated monoterpenes (92.4%), especially camphor (32....

background & aim: singhnad guggulu is a traditional ayurvedic formula for detoxifying and rejuvenating the joints. the present study was to investigate the α-amylase inhibition and antioxidant activities of aqueous extract of singhnad guggul (aesg). experimental: α-amylase inhibition assay by dinitro-salicylic acid method and antioxidant activity by ferric chelating and ferrous reducing ass...

Background & Aim: Singhnad Guggulu is a traditional Ayurvedic formula for detoxifying and rejuvenating the joints. The present study was to investigate the α-amylase inhibition and antioxidant activities of aqueous extract of Singhnad Guggul (AESG). Experimental: α-Amylase inhibition assay by dinitro-salicylic acid method and antioxidant activity by ferric chelating and ferrous reducing assay....

New benzodiazaphosphorin-2-oxide derivatives 3 were synthesized with the aim of evaluating in vitro their antioxidant properties related to DPPH radical scavenging, ferric reducing power (FRP), hydroxyl radical scavenging and ferrous ion chelating activity (FIC). The structures of the new compounds were confirmed and characterized on the basis of their infrared and nuclear magnetic resonance sp...

in the present study, we have reported the total phenolic content, total flavonoid content, antioxidant and antimicrobial activity of aerial parts of salvia leriifolia extracts and fractions. methanolic, n-hexane, chloroform, and ethyl acetate extracts were screened to analysis their antioxidant activities by four complementary test systems, namely dpph free radical scavenging activity (rsa), t...

Major pyoverdines from Pseudomonas fluorescens 2-79 (Pf-B), P. aeruginosa ATCC 15692 (Pa-C), and P. putida ATCC 12633 (Pp-C) were examined by absorption and fluorescence spectroscopic techniques to investigate the interaction between ferrous ion and the pyoverdine ligand. At physiological pH, ferrous ion quenched the fluorescence of all three pyoverdines much faster than ferric ion did. Also, i...

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...

Background and objectives: Artemisia aucheri Boiss. is regarded as one of 34 Artemisia species growing in Iran. The aim of this study was to undertake an investigation of the antioxidant activity as well as identification of main compound of different extracts and fractions of A. aucheri. Methods: Antioxidant activity and tot...

This study was aimed at evaluating the antimutagenic and antioxidant properties of milk-kefir and soymilk-kefir. Such antimutagenic activity was determined by means of the Salmonella mutagenicity assay, whereas the antioxidant properties of kefir were evaluated by assessing the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity, lipid peroxidation inhibition activity, ferrous ion ...

This study aimed at isolating acylphloroglucinol derivatives with potential antioxidant effect from the brown alga Zonaria tournefortii and to ascertain their structure–activity relationship (SAR). Fractionation HPLC purification led isolation of four major metabolites that were screened for activity via five complementary methods. Results indicated all tested compounds proved have activities. ...