نتایج جستجو برای: free radical scavenging activity

تعداد نتایج: 1660848  

Dorema glabrum Fisch. & C.A. Mey. (Apiaceae) is a monocarpic perennial plant distributed in southern Caucasus. In Azerbaijan Republic folk medicine, the gum-resin of this species is used as a diuretic and anti-diarrheal agent. It is also traditionally used for the treatment of bronchitis and catarrh. In the present study, chemical constituents of the essential oil and extract of D. glabrum aeri...

Salvia reuterana Bioss. is an aromatic perennial plant traditionally used for its anxiolytic and sedative properties. In the present study, various fractions and essential oil of S. reuterana aerial parts were investigated to find its free radical scavenging principles. Hydroalcoholic fraction with IC50 value of 112.6 ±3.2 μg ml-1 in DPPH assay demonstrated the highest free radical scavenging a...

2015
Khem Raj Joshi Hari Prasad Devkota Takanori Nakamura Takashi Watanabe Shoji Yahara

Vitexin (1), isovitexin (2), orientin (3), isoorientin (4) and 1,3dihydroxy6, 7dimethoxyxanthone (5) were isolated from the whole plant of Begonia picta, a Nepalese crude drug commonly known as “Magarkaanche”. Structures were elucidated on the basis of chemical and spectroscopic methods. All of these compounds were isolated for the first time from B. picta and their in vitro antioxidant acti...

2004
Klára Szentmihályi Anna Blázovics Péter Vinkler

Since metals are cable of catalysing the free radical reactions, different metal (Mg, Mn, Zn) compounds were studied to determine their hydroxyl radical generating and/or scavenging abilities depending on ligand in a H2O2/OH -luminol system with or without microperoxidase. Magnesium oxide, magnesium gluconate and manganese gluconate increase the free radical reactions in the H2O2/OH -luminol sy...

Journal: :iranian journal of pharmaceutical research 0
mohammad-reza delnavazi tehran university of medical sciences abbas hadjiakhoondi tehran university of medical sciences abbas delazar tabriz university of medical sciences yousef ajani now he is student of phd. degree in germany saeed tavakoli tehran university of medical sciences narguess yassa tehran univ. med. sci.

dorema glabrum fisch. & c.a. mey. (apiaceae) is a monocarpic perennial plant distributed in southern caucasus. in azerbaijan republic folk medicine, the gum-resin of this species is used as a diuretic and anti-diarrheal agent. it is also traditionally used for the treatment of bronchitis and catarrh. in the present study, chemical constituents of the essential oil and extract of d. glabrum aeri...

2015
Priti S. Patil Pratima A. Tatke Satish Y. Gabhe

Introduction: Rosa damascena mill L., well-known as Rose, has numerous pharmacological properties including antioxidant, antitussive, relaxant effect on tracheal chains, hypnotic, antibacterial and anti-HIV. Objective: The objective of the present study was to evaluate antioxidant and free radical scavenging activity of various extracts of Rose flower petals. Methods: Chloroform, acetone, ethan...

Journal: :iranian journal of pharmaceutical research 0
t sathish kumar s shanmugam t palvannan vm bharathi kumar

ethanolic extract of leaves of elaeocarpus ganitrus was analyzed for their total antioxidant capacity, reducing power, metal chelating, abts+ (2, 2-azinobis-(3-ethylbenzothiazoline-6-sulphonate) radical scavenging and hydroxyl radical scavenging activities. the extract at 500 ?g/ml showed maximum iron chelating activity (76.70%) followed by the scavenging of the abts+ radical (55.77%) at the sa...

Journal: :iranian journal of pharmaceutical research 0
j nehete m bhatia m narkhede

costus speciosus (koen) j.e. sm. plant and its extracts are used for treatment of fever, snake bites, jaundice, and as a purgative, astringent and antibacterial agent. in the present study, an attempt has been made to evaluate in vitro antioxidant activity of different extracts of this plant by dpph radical scavenging activity, total antioxidant capacity, nitric oxide scavenging activity, ion c...

2014
N. RAAMAN C. SIVARAJ

Objective: The aim of the present investigation was to evaluate the phytochemical constituents, free radical scavenging activities and antioxidant properties of the methanol extract of leaves of Artocarpus heterophyllus. Methods: The phytochemicals in the methanol extract of leaves of A. heterophyllus were determined qualitatively and quantitatively using standard methods. The antioxidant activ...

2012
Noriko Yamabe Kyung Il Song Woojung Lee Im-Ho Han Ji Hwan Lee Jungyeob Ham Su-Nam Kim Jeong Hill Park Ki Sung Kang

Reactive oxygen species play critical role in kidney damage. Free radical-scavenging activities of Panax ginseng are known to be increased by heat-processing. The structural change of ginsenoside and the generation of Maillard reaction products (MRPs) are closely related to the increased free radical-scavenging activities. In the present study, we have demonstrated the Maillard reaction model e...

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