نتایج جستجو برای: scavenging activity

تعداد نتایج: 1141261  

Ali Asghar Hatamnia Hatamnia Khoshnood Nourollahi Parviz Malekzadeh,

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...

Journal: :journal of chemical health risks 0
zahra hosseinpoor mohsen abadi department of chemistry, hakim sabzevari university, sabzevar, iran behnam mahdavi department of chemistry, hakim sabzevari university, sabzevar, iran esmaeil rezaei-seresht department of chemistry, hakim sabzevari university, sabzevar, iran

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...

Journal: :iranian journal of pharmaceutical sciences 0
alama badrul department of pharmacy, atish dipankar university of science and technology, dhaka, bangladesh haque ekramul department of pharmacy, brac university, dhaka, bangladesh

the crude methanolic extract of the seeds of celastrus paniculatus along with its organic soluble fractions were tested for their possible antioxidant and anti-alzheirmer (ad) activity. the extracts showed prominent dpph free radical scavenging activity, inhibiting activity of authentic peroxynitrite (onoo-) and inhibition of total reactive oxygen species (ros) generation. in dpph radical scave...

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...

The health benefits of green and black tea are mainly associated with their antioxidant potential and phenolic compounds. The present study aimed to evaluate the effects of dried rose petals (Rosa damascena) on the antioxidant capacity of green and black tea. Antioxidant capacities of tea and rose infusions were assessed using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and 2, 2-azinobis-3-<...

Journal: :avicenna journal of medical biotechnology 0

hydroalcoholic extract (70% ethanol extract) of tubers of momordica tuberosa cogn. (cucurbitaceae) was subjected to preliminary phytochemical screening by qualitative tests. nitric oxide scavenging activity was performed by griess reagent method. and nephroprotective activity was assessed in gentamicin, cisplatin and paracetamol induced renal damage in wistar rats (150-200 g) by standard method...

Journal: :Chemical and Pharmaceutical Bulletin 2008

Journal: :ecopersia 0
mohammad khezri ph.d students, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran masoud rezaei professor, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran sana rabiey ph.d students, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran elham garmsiri former m.sc. student, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran

the antibacterial and antioxidant activities of methanol and acetone extracts of three marine algae, including hypnea hamulosa, gracilaria corticata and enteromorpha intestinalis wereinvestigated.antioxidant activities were determined by means of total antioxidant capacity, total phenolic compounds, dpph radical scavenging activity and ferric reducing antioxidant power. antibacterial activity w...

Alama Badrul Haque Ekramul,

        The crude methanolic extract of the seeds of Celastrus paniculatus along with its organic soluble fractions were tested for their possible antioxidant and anti-alzheirmer (AD) activity. The extracts showed prominent DPPH free radical scavenging activity, inhibiting activity of authentic peroxynitrite (ONOO-) and inhibition of total reactive oxygen species (ROS) generation. In D...

Journal: :iranian journal of pharmaceutical research 0
e souri g amin h farsam h jalalizadeh s barezi

antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical induced oxidative stress. a variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. in this study the antioxidant activity and radical scavenging activity of methanolic extracts of s...

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