نتایج جستجو برای: in comparison with hydroxyl radical scavenging activity and reducing power

تعداد نتایج: 22717087  

Journal: :research journal of pharmacognosy 0
s. mohammadi- motamed department of pharmacognosy, pharmaceutical sciences branch, islamic azad university (iau), tehran, iran. s. shahidi-motlagh department of pharmacognosy, pharmaceutical sciences branch, islamic azad university (iau), tehran, iran. h. bagherzadeh department of pharmacognosy, pharmaceutical sciences branch, islamic azad university (iau), tehran, iran. s. azad forouz department of pharmacognosy, pharmaceutical sciences branch, islamic azad university (iau), tehran, iran. h. tafazoli department of pharmacognosy, pharmaceutical sciences branch, islamic azad university (iau), tehran, iran.

the antioxidant properties of ruta graveolens l. were evaluated by two different methods; free radical scavenging using dpph and inhibition of lipid peroxidation by the ferric thiocyanate method. the ic50 value of the methanol extract in dpph inhibition was 200.5 μg/ml which was acceptable in comparison with bht (41.8 μg/ml). in thiocyanate method, the plant extract demonstrated activity as muc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و علوم انسانی 1388

the purpose of this study was to investigate how english language teachers in mashhad who teach students in the pre-university cycle perceived the impact of the efltee on their teaching. the target population was nearly all pre-university english language teachers in seven districts of mashhad in the scholastic year 2008/2009. a survey questionnaire which consisted of (36) likert type items, wa...

2012
Soheila Moein Mahmoodreza Moein Mohammad Javad Khoshnoud Tahereh Kalanteri

BACKGROUND There is an interest in finding new and safe antioxidants from natural sources such as medicinal plants. OBJECTIVES The aim of this study was to evaluate the antioxidant activity of ten Iranian medicinal plants extracts. MATERIALS AND METHODS For antioxidant activity, the radical scavenging activity, reducing power and phenolic contents of ethanol plant extracts were determined. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

this thesis is a study on insurance fraud in iran automobile insurance industry and explores the usage of expert linkage between un-supervised clustering and analytical hierarchy process(ahp), and renders the findings from applying these algorithms for automobile insurance claim fraud detection. the expert linkage determination objective function plan provides us with a way to determine whi...

Germination is one of the most effective processes to improve the quality of legumes. Vitamins and some other compounds that might be considered beneficial as antioxidants, often change dramatically during the course of germination. Antioxidants might be defined as compounds which are capable of preventing, delaying or retarding the development of rancidity or other flavor deterioration in food...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

phatic communion is a cultural concept which differs across cultures. according to hofstede (2001), the u.s. tends to have individualistic culture; however, asian countries tend to have collectivistic cultures. these cultures view phatic communion differently. in individualistic cultures like u.s., phatic communion reflects speakers’ socio-cultural relationships in conversations. to see whether...

Journal: :Journal of agricultural and food chemistry 2013
Soumya Maity Suchandra Chatterjee Prasad Shekhar Variyar Arun Sharma Soumyakanti Adhikari Santasree Mazumder

The antioxidant property of the 70% aqueous ethanol extract of Phyllanthus amarus roots and its ether-soluble, ethyl acetate-soluble, and aqueous fractions were investigated by various in vitro assays. The root extracts showed higher DPPH, hydroxyl, superoxide, and nitric oxide radical scavenging and reducing power activity. Among all the samples, the ethyl acetate-soluble fraction demonstrated...

2014
Rutanachai Thaipratum

Free radicals are atoms or molecules with unpaired electrons. Many diseases are caused by free radicals. Normally, free radical formation is controlled naturally by various beneficial compounds known as antioxidants. Several analytical methods have been used for qualitative and quantitative determination of antioxidants, and each has its own specificity. This project aimed to evaluate antioxida...

Radiation resistant bacteria have adopted a variety of ingenious strategies for survival under the high dose of radiation, for example through their pigments. In the present study, two ultraviolet-C (UVC) radiation tolerant bacteria, named NM1 and NM3 strains, were isolated from the industrial waste and soil that identified by the molecular analysis. Survival assay of irradiated bacteria was pe...

Journal: :iranian journal of radiation research 0
s.a. divakaran amala cancer research centre, amala nagar, thrissur‐ 680555, kerala, india p.s. hema organic chemistry section, national institute for interdisciplinary science & technology (csir), trivandrum‐ m.s. nair organic chemistry section, national institute for interdisciplinary science & technology (csir), trivandrum‐ c.k.k. nair pushpagiri institute of medical sciences & research centre, thiruvalla ,kerala, 689101, india

background: alpinia galanga l. belonging to the family zingiberaceae is widely grown in the state of kerala, india. they are effective antioxidant and free radical scavenger under both in vitro and in vivo condition. the efficacy of the isolated flavonoids in conferring protection from radiation induced damages to genomic dna was studied. materials and methods: the bioflavonoids, galangin and k...

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