نتایج جستجو برای: antioxidant assay

تعداد نتایج: 308442  

T Esmaiili, Z Hozori, AR Ghohari , F Yousfbeyk , GhR Amin , SN Ostad , Z Pashna ,

Background: Cornus sanguinea L subsp australis (C.A. Mey.) Jáv. (Cornaceae) is a native species in north and northwest of Iran. It is locally named Siah-al. The genus Cornus is rich source of anthocyanins. Objective: In this study the antioxidant activity, total phenol and total anthocyanin contents of different extracts of C. sanguinea L subsp australis. were investigated for the first time. ...

2014
Jae-Hee Park Minhee Lee Eunju Park

The aim of this study was to investigate the antioxidant activity of orange (Citrus auranthium) flesh (OF) and peel (OP) extracted with acetone, ethanol, and methanol. Antioxidant potential was examined by measuring total phenolic content (TPC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (RSA), total radical-trapping anti-oxidant potential (TRAP), oxygen radical absorbance...

2016
Raju Asirvatham

Aim:The present study aimed to assess the in vitro antioxidant and anticancer properties of Drosera peltata J.E.Sm. Methods:Antioxidant capacity of the extracts were tested on hydroxyl, DPPH, super oxide, nitric oxide and ABTS radicals; of ferrous ion chelating ability and by reducing power assay.Ascorbic acid was used as the standard antioxidant for the above all assay methods. Dalton’s Asciti...

2011
Hana Drobiova Martha Thomson Khaled Al-Qattan Riitta Peltonen-Shalaby Zainab Al-Amin Muslim Ali

Oxidative damage by free radicals has been implicated in the pathogenesis of vascular disease in diabetes and hypertension. In the present study, the total antioxidant status in diabetic and hypertensive rats before and after treatment with garlic (Allium sativum) was determined. The total serum antioxidants were measured by a modified method reported earlier by Miller and coworkers. The reprod...

2014
Mayron Alves Vasconcelos Francisco Vassiliepe Sousa Arruda Daniel Barroso de Alencar Silvana Saker-Sampaio Maria Rose Jane Ribeiro Albuquerque Hélcio Silva Dos Santos Paulo Nogueira Bandeira Otília Deusdênia Loiola Pessoa Benildo Sousa Cavada Mariana Henriques Maria Olivia Pereira Edson Holanda Teixeira

This study evaluated the effect of derriobtusone A, a flavonoid isolated from Lonchocarpus obtusus, on two important pathogenic bacteria, Staphylococcus aureus and Escherichia coli, as well as its antioxidant activity and toxicity. Planktonic growth assays were performed, and the inhibition of biofilm formation was evaluated. In addition, antioxidant activity was assessed by DPPH radical scaven...

Herbal water is referred to the liquid obtained from the distillation of medicinal plants. Different parts of plants, such as flowers, fruits, leaves, seeds and roots have long been used to produce herbal waters. Herbal waters are used as dietary supplements and alternative medicine and are commonly used for flavoring in baking. Previous studies focused on the non-volatile constituents of herbs...

Journal: :Anais da Academia Brasileira de Ciencias 2014
Daniel B de Alencar Suzete R da Silva Kelma M S Pires-Cavalcante Rebeca L de Lima Francisco N Pereira Júnior Márcia B de Sousa Francisco A Viana Celso S Nagano Kyria S do Nascimento Benildo S Cavada Alexandre H Sampaio Silvana Saker-Sampaio

Natural antioxidants found in marine macroalgae are bioactive compounds known to play an important role in the prevention of diseases associated with aging cells protecting them against the oxidative damage. The purpose of this study was to evaluate the antioxidant and cytotoxic activity of ethanolic extracts of two species of red seaweeds, Amansia multifida and Meristiella echinocarpa. In vitr...

Journal: :Journal of applied physiology 2012
Carlos Fernando Ronchi Jose Roberto Fioretto Ana Lucia Anjos Ferreira Carolina Bragiola Berchieri-Ronchi Camila Renata Correa Cilmery Suemi Kurokawa Mário Ferreira Carpi Marcos Aurélio Moraes Kyung-Jin Yeum

Oxidative damage has been said to play an important role in pulmonary injury, which is associated with the development and progression of acute respiratory distress syndrome (ARDS). We aimed to identify biomarkers to determine the oxidative stress in an animal model of acute lung injury (ALI) using two different strategies of mechanical ventilation. Rabbits were ventilated using either conventi...

2014

Two non colored and one colored rice varieties from Minahasa Regency, North Sulawesi, Indonesia were analyzed to determine the phytochemicals and antioxidant properties as natural antioxidant sources. Different brans of rice varieties divided into two groups: red rice and non colored (Superwin and Cigeulis) were macerated by ethanol (70%) and extracted with organic solvents (butanol, ethyl acet...

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