نتایج جستجو برای: free radical scavenging method

تعداد نتایج: 2141595  

Journal: Journal of Herbal Drugs 2015
Hiroko Isoda, John Refaat, Junkyu Han, Mahmoud Ahmed Ramadan Mohamed Salah Kamel Samar Yehia Desoukey

Background & Aim: Chorisia is an important Bombacaceous plant that is traditionally used for a variety of ailments. Due to its richness in several bioactive phytocompounds, some Chorisia species showed a wide range of important biological effects. Accordingly, the present work was undertaken to comparatively evaluate the antioxidant potential and effects on adipogenesis of <em...

Journal: :the iranian journal of pharmaceutical research 0
aytaç güder department of chemistry, faculty of arts and sciences, ondokuz mayis university, samsun, turkey. halil korkmaz department of chemistry, faculty of arts and sciences, ondokuz mayis university, samsun, turkey.

the study was aimed at evaluating the antioxidant activity of hydroalcoholic solution extracts of urtica dioica l. (ud), malva neglecta wallr. (mn) plants and their mixture. in this study, flower (udf), root (udr), seed (uds) and leaf (udl) parts of ud and flower (mnf) and leaf (mnl) parts of mn were used. the antioxidant properties of hydroalcoholic extracts and their mixture were evaluated us...

Salvia genus is one of the largest genera of the Lamiaceae family. Its species have been used for a wide variety of disorders in the local traditional medicine systems. Therefore, the genus has been the subject of several phytochemical and biological studies. The aim of the study was to identify the major antioxidant compound(s) from the methanol extract of Salvia verticillata using activity-gu...

Journal: :iranian journal of pharmaceutical research 0
bahman nickavar department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences javad rezaee department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran azar nickavar aliasghar children&amp;rsquo;s hospital, iran university of medical sciences, tehran, iran

salvia genus is one of the largest genera of the lamiaceae family. its species have been used for a wide variety of disorders in the local traditional medicine systems. therefore, the genus has been the subject of several phytochemical and biological studies. the aim of the study was to identify the major antioxidant compound(s) from the methanol extract of salvia verticillata using activity-gu...

2014
Richa Upadhyay Jitendra Kumar Chaurasia Kavindra Nath Tiwari Karuna Singh

In present study free radical scavenging potential of aerial parts and root of Phyllanthus fraternus was investigated. Extraction was done in water and ethanol. Total antioxidant capacity was measured by DPPH free radical scavenging method; ethanolic extract of aerial part was most potent in activity with 50% inhibition at 258 μg/mL concentration. Lipid peroxidation (LPO) was measured in terms ...

2012
Amit Subedi Mohan Prasad Amatya Tirtha Maiya Shrestha Shyam Kumar Mishra Bharat Mani Pokhrel

The methanol extract of the bark of Machilus odoratissima was subjected to investigate its antioxidant and antibacterial properties. The phytochemical screening demonstrated the presence of different types of compound like terpenoids, tannins, deoxy sugar, saponins and phenolic compounds. The methanol extract of the plant was tested for antioxidant activity using scavenging activity of DPPH(1,1...

Journal: :فرآوری و نگهداری مواد غذایی 0
زهرا نصیری فر دانشجوی کارشناسی ارشد علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان علیرضا صادقی ماهونک استادیار گروه علوم و صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان فائزه کمالی دانشجوی کارشناسی ارشد علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان

plants are rich source of phenolic compounds (phenolic acids, flavonoids and tannins) that are most important natural antioxidants. in the present study two ultrasonic methods including probe and bath were used for the extraction of phenolic and flavonoid compounds from celtis australis. the effects of different extraction time including 30, 60 and 90 min (bath method) and 5, 10 and 20 min (pro...

Journal: :journal of agricultural science and technology 2013
r. farhoosh m. h. tavassoli-kafrani a. sharif

dpph radical-scavenging activity of the bene hull oil (bho), sesame oil (seo), rice bran oil (rbo), the oils' methanolic (ch3oh/h2o, 80:20 v/v) or hexane extracts, and their unsaponifiable matters fraction were measured and compared with each other. as a radical-scavenger, seo was significantly stronger than rbo and bho, respectively. unlike bho and rbo, the unsaponifiable (usm) fraction of the...

Journal: :Pakistan journal of pharmaceutical sciences 2014
Abdur Rauf Ghias Uddin Haroon Khan Roohullah

To explore the free radical scavenging properties of crude ethanolic extract of galls, bark, leaves, roots of Pistacia integerrima and its subsequent solvent fractions viz., n-hexane, chloroform, ethyl acetate and methanol against 1, 1-diphenyl-2-picrylhydrazyl (DPPH) stable. In vitro DPPH based free radical was employed using querceitin as standard antioxidant while methanol as negative contro...

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