نتایج جستجو برای: antioxidant activity and capacity

تعداد نتایج: 16985062  

Mirzaei, Ali, Mirzaei, Mahsa, Mirzaei, Noshin, Mohammadi, Jamshid,

Background & Objectives: Free radicals are highly reactive molecules may cause great damage to cell membranes and DNA and Result in inducing oxidation DNA mutations leading to cancer, degenerative, and other diseases. Plant antioxidant derived may be preventive of free radical damages. Methods & Materials: The Stems and flower sample of plants air-dried, finely ground and were extracted by etha...

E. Nikkhah, M. Khayami R. Heidari

Antioxidant activity of Berry (Morus alba var. nigra) was investigated. For superoxide anion radical assay, the superoxide anion radicals were generated by a pyrogallol auto oxidation system, Nitric oxide radical inhibition by the use of Griess Illosvoy reaction and reducing power was determined according to the Oyaizu method. At least this sample was represented a potential antioxidant capacit...

Journal: :international journal of preventive medicine 0
hossein hajianfar zamzam paknahad ahmad bahonar

background: diabetes is one of the most common chronic diseases in which antioxidant capacity changes. omega‑3 fatty acids have extensive biological effects including their advantage on lipoprotein metabolism, platelet function, cytokine production, clotting, fibrinolysis, and inflammatory factors. this study aimed to investigate the effect of omega‑3 fatty acid supplements on antioxidant capac...

Journal: :Genetics and molecular research : GMR 2009
L S Ondei L M Silveira A A Leite D R S Souza M A S Pinhel S Percário O Ricci Júnior C R Bonini-Domingos

Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an enzymopathy in which reduced NADPH concentrations are not maintained, resulting in oxidative damage. We evaluated G6PD activity, oxidative stress levels and Trolox equivalent antioxidant capacity in individuals with the A-(202G>A) mutation for G6PD deficiency. Five hundred and forty-four peripheral blood samples were screened for G6PD de...

Objective(s): In the current study antioxidant capacities of five different extracts of Artemisia ciniformis aerial parts were evaluated by cell-free methods. Then seven fractions of the potent extract were selected and their antioxidant capacity was assayed by cell free and cell based methods. Materials andMethods: Antioxidant ability was measured using the: 2, 2-diphenyl-1-picrylhydrazyl (DP...

Journal: :علوم باغبانی ایران 0
مهسا همدانی دانشجوی سابق کارشناسی ارشد، دانشکدۀ کشاورزی، دانشگاه زنجان ولی ربیعی استادیار، دانشکدۀ کشاورزی، دانشگاه زنجان حسین مرادی استادیار، دانشگاه کشاورزی و منابع طبیعی ساری علی قنبری مربی، دانشگاه کشاورزی و منابع طبیعی ساری

quality and flesh colour characteristics of blood oranges following harvest is related to and dependent upon temperature and storage conditions. to investigate the effects of different temperatures (8, 15 and 22ºc) and different storage period (0, 25, 50 and 75 days) on total soluble solids, titrable acidity, ph, ascorbic acid, total phenolic contents, antioxidant capacity, anthocyanin level, a...

Journal: :journal of medicinal plants and by-products 0

this research had been carried out to ecological characters, phytochemical, anti bacterial and antioxidant activity of thymus carmanicus jalas. in golestan  province .in several field observation, the aerial parts of plant in blooming were collected from deraznoo mountain inseptember 2013 (2700 m). essential oil was obtained by hydro distillation and  analyzed by gc/ms. phytochemical assay incl...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
m zangiabadi 1- department of food science and technology, tarbiat modares university ma sahari department of food science and technology, tarbiat modares university, tehran, iran, tel: +98-21-48292328; fax: +98-21- 48292200 m barzegar 1- department of food science and technology, tarbiat modares university h naghdi badi department of cultivation and development, institute of medicinal plants, acecr

background: autoxidation is considered to be the main route of edible oil deterioration, which produces undesirable odors and flavors (attributed to primary and secondary products of unsaturated fatty acids) during storage and heating. objective: antioxidant activities of zataria multiflora (zmeo) and bunium persicum (bpeo) essential oils (eos) in linseed oil (containing higher ω-3 in vegetable...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
ramazan mammadov ayşe makasçı - afacan derya uysal - demir çiğdem görk

the subject handled in this study is the determination of antioxidant activities of extracts obtained from the urginea maritima (l.) baker plant’s leaves and tubers. extractions which were obtained using various solvents as methanol, ethanol, acetone and benzine. the antioxidant activity of the extracts was determined using β-karotene-linoleic acid system. moreover, the free radical scavenging ...

The chemical compositions, antioxidant and antimicrobial properties of fucoidan extracted from Sargassum ilicifolium and S.angustifolium were investigated. The results showed that these seaweeds were characterized by an acceptable level of minerals and proteins. The fatty acid profile was dominated by the palmitic acid, which represents about 37.44±0.01% and 23.05±0.01% of the total fatty acids...

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