نتایج جستجو برای: activities dpph free radical scavenging
تعداد نتایج: 950285 فیلتر نتایج به سال:
The objective of this study was to evaluate total phenolic content and antioxidant activity of leaf and different parts of fruit (hull, shell, and kernel) of Bene in Ilam province. Total phenolic content was determined with the Folin- Ciocalteu Reagent (FCR); antioxidant activity of methanolic extracts were examined by DPPH (2,2diphenyl- 1- picrylhydrazyl), FRAP (ferric reducing antioxidant pow...
background & aim:oxidative stresses caused by free radicals are known to promote many diseases such as inflammation and cancer; therefore, any plant product that can inhibit free radical production can play an important role in preventing diseases. we aimed to compare the fracture rate and the scavenging activity of free radicals, and the antioxidant composition of rolb-transformed hairy root o...
Article history: Received on: 27/07/2014 Revised on: 08/08/2014 Accepted on: 24/08/2014 Available online: 27/09/2014 The plant Hyptis is an effective medicinal herb and a well known medicinal plant in herbal world. The present study was aimed to investigate the α-amylase inhibition and antioxidant activities of chloroform fraction of H. suaveolens. Chloroform fraction of H. suaveolens was scree...
The free radical scavenging activities of n-hexane extract of the whole plant of Emilia sonchifolia was evaluated by employing various in vitro assay systems like DPPH radical scavenging activity, superoxide radical scavenging activity and hydrogen peroxide scavenging activity with IC50 values 180, 160 and 160 μg/ml respectively. The results of the study indicate that the n-hexane extract of th...
Objective: The present investigation was an attempt to evaluate the phytochemical constituents, free radical scavenging activities and antioxidant properties of the methanol extract of leaves of Hypericum hookerianum. Methods: The total antioxidant activity was assayed by DPPH free radical scavenging assay method. The phytochemicals in the methanol extract of leaves of Hypericum hookerianum wer...
This study investigated the biological activities of 70% methanol extracts from black chokeberry and blueberry by measuring DPPH, superoxide anion and ABTS radical scavenging activities, metal chelating effect, reducing power, and nitrite scavenging activity. Extraction yields of black chokeberry and blueberry were 62.90% and 67.09%, respectively. Total polyphenol and total flavonoid contents w...
In the present study, the chemical composition of the essential oil and methanol (MeOH) extract of aerials of E. azerbaijanica were identified. Furthermore, the free radical scavenging properties of the volatile oil as well as the MeOH extract of the plant were assessed. The essential oil of the air-dried aerial parts was obtained by hydro-distillation using a Clevenger-type apparatus. The oil ...
Artocarpus lakoocha Roxb (Moraceae) is cultivated in Uttar Pradesh, Bengal, Khasi Hills and Western Ghats. Objectives of the present study were to determine antibacterial, antioxidant, anthelmintic and insecticidal efficacy of methanol extract of A. lakoocha fruit pericarp. Antibacterial activity was tested against by Agar well diffusion method. Antioxidant activity in terms of free radical sca...
Lamiaceae herbs known for their culinary properties are a rich source of potentially health-beneficial antioxidant polyphenols. The objective of this investigation was to evaluate and prove the in vitro antioxidant activity of five different extracts of aerial parts of the plant Leucas aspera, belonging to the family Lamiaceae on different models namely the DPPH free radical scavenging assay, F...
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