نتایج جستجو برای: free radical scavenging activity

تعداد نتایج: 1660848  

2013
Pardeep Sharma G. Ravikumar M. Kalaiselvi D. Gomathi C. Uma

Antioxidant supplements from plants are vital to count the oxidative damage in cells. We assessed the antioxidants and antibacterial activity of green hull of Juglans regia in this study. According to our results the maximum antibacterial activity was observed in ethanolic extract when compared to other extract. So, the ethanolic extract was studied for antioxidant activity which exhibited high...

حسینی, ناصر, ملکی راد, علی اکبر, ناظمی, منا, چنگیزی اشتیانی, سعید,

Introduction: Essential oils and extracts from medicinal plants are regarded as natural food preservatives and health promoting drugs. Considering their antioxidant activity, most of them can prevent oxidative stress. The present study was aimed to evaluate free radicals scavenging activity of essential oils and different fractions of methanol extracts from cinnamon, pennyroyal, black cumin, sa...

Total phenolic contents (TPC) of five different extracts (petroleum ether, dichloromethane, ethyl acetate, ethanol and ethanol-water) of Artemisia biennis Willd were measured in this work. The antioxidant activity was investigated by three different methods: β-carotene bleaching (BCB) test, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method and ferrous ion chelating (FIC) assay. Amo...

2011
D. Sophia P. Ragavendran C. Arulraj V. K. Gopalakrishnan

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...

Total phenolic contents (TPC) of five different extracts (petroleum ether, dichloromethane, ethyl acetate, ethanol and ethanol-water) of Artemisia biennis Willd were measured in this work. The antioxidant activity was investigated by three different methods: β-carotene bleaching (BCB) test, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method and ferrous ion chelating (FIC) assay. Amo...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
n hosseini department of medicinal plants, faculty of agriculture and natural resources, arak university, arak 38156-8-8349, iran, tel: + 98- 861-2767306 m akbari r ghafarzadegan s changizi ashtiyani r shahmohammadi

background: in recent years, plants natural products have gained considerable attention as natural preservers for use in different industries. due to their free radical scavenging activities, phenolic compounds can prevent a wide range of diseases such as cancers and cardiovascular and neurodegenerative diseases. for a long time, different ferulago species have been in use as medicinal plants w...

Journal: :jundishapur journal of natural pharmaceutical products 0
mahdi mojarrab department of pharmacognosy and pharmaceutical biotechnology, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, ir iran roozbeh soltani students research committee, kermanshah university of medical sciences, kermanshah, ir iran; department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, ir iran alireza aliabadi department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, ir iran; department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, ir iran. tel: +98-8314276481, fax: +98-8314276493

conclusions according to the obtained data, synthesized pyridine based chalcones (3a-3j) could be proposed as potential antioxidant lead compounds. background natural chalcones and also their synthetic derivatives have attracted increasing attention due to various pharmacological applications. development and discovery of new chalcones with antioxidant activities is one of the attracting areas ...

2010
S. Kumar R. Malhotra D. Kumar

The present study was carried out to evaluate antidiabetic and in vitro free radicals scavenging effects of flower extract of Euphorbia hirta. The ethanolic and petroleum ether extracts (250 and 500 mg/kg) were orally tested for 21 days in alloxan induced diabetic mice and blood glucose level was measured with glucometer. Administration of extract resulted in significant reduction in serum chol...

Journal: :iranian journal of pharmaceutical research 0
a alinaghi m kamalinejad

the aim of the study was to evaluate the antioxidant and free radical scavenging properties and to determine the phenolic content of the ethanol extract from five mentha species [m. longifolia (l.) huds., m. piperita l., m. pulegium l., m. rotundifolia (l.) huds., and m. spicata l.]. the antioxidant activities of the extracts were investigated with two different methods, 2,2’-diphenyl-1-picrylh...

2014
Mukesh Kumar Mukesh Kumar Meena Neelam Singh Vidya Patni

Plants are a potential source of natural antioxidants. Antioxidants protect from the potentially damaging oxidative stress, which is a result of an imbalance between the formation of ROS (Reactive oxygen species) and the body antioxidant defense. The present study was directed to investigate the antioxidant activity of methanolic extract of different plant parts of Cocculus hirsutus. The antiox...

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