نتایج جستجو برای: antioxidant tests

تعداد نتایج: 428030  

Journal: :Molecules 2018
Taiwo Olusesan Akanbi Colin James Barrow

In this study, several lipophilic hydroxytyrosyl esters were prepared enzymatically using immobilized lipase from Candida antarctica B. Oxidation tests showed that these conjugates are excellent antioxidants in lipid-based matrices, with hydroxytyrosyl eicosapentaenoate showing the highest antioxidant activity. Hydroxytyrosyl eicosapentaenoate effectively stabilized bulk fish oil, fish-oil-in-w...

Journal: :jundishapur journal of natural pharmaceutical products 0
sayed ahmad emami department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran ali shahani department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran mohammad hassanzadeh khayyat pharmaceutical sciences research center, department of medicinal chemistry, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran; pharmaceutical sciences research center, department of medicinal chemistry, school of pharmacy, mashhad university of medical sciences, p.o. box: 91775-1365, mashhad, ir iran. tel: +98-511882325565, fax: +98-5118823251

results the results of the study, using the two methods, showed that all methanol extracts of leaves and fruits of the six species possessed antioxidant activity. the antioxidant activity of the samples was compared with the antioxidant activities of butylatedhydroxytoluene (bht), as a synthetic antioxidant and α-tocopherol as a natural antioxidant. methanol extractions of pinus spp. leaves and...

Abdolrasoul Haghir Ebrahimabadi Ahmad Khalighi Hossain Batooli Sara Jelodarian,

Objective: Antioxidants are considered as the main factors in the inhibition of unwanted oxidation reactions. Materials and Methods: In this research the antioxidant potential of the fresh fruits of 4 cultivars (A to D) of Malus domestica (M. domestica) cultivated in the Kashan, Qamsar area was evaluated. The antioxidant activity of the samples were evaluated using two complementary antioxidant...

Akram Arianfar Maryam Sardarodiyan, Masoomeh Mehraban Sang Atash

Nowadays the researches have indicated the fact that using synthetic antioxidants as food additives in edible oils can have adverse effects on human health. So preparing antioxidation resources for reduction of oxidation stress effects is important. The aim of this project was, representing a natural antioxidant source with frap test. The present study optimized the ultrasound assisted extracti...

2007
S. A. Emami J. Asili Z. Mohagheghi M. K. Hassanzadeh

Cupressus semipervirens var. horizontalis, Cupressus semipervirens var. semipervirens, Cupressus semipervirens cv. Cereifeormis, Juniperus communis subsp. hemisphaerica, Juniperus excelsa subsp. excelsa, Juniperus excelsa subsp. polycarpos, Juniperus foetidissima, Juniperus oblonga, Juniperus sabina, Platycladus orientalis and Taxus baccata are Iranian conifers. The antioxidant activity of leav...

2017
Silas Arandas Monteiro e Silva Bozena Michniak-Kohn Gislaine Ricci Leonardi

Free radicals are unstable chemical species, highly reactive, being formed by cellular entities of different tissues. Increased production of these species without proper effective action of endogenous and exogenous antioxidant systems, generates a condition of oxidative stress, potentially provider of skin disorders that extend from functional impairments (skin cancer, dermatitis, chronic and ...

2017
Mohammed Babiker

The aim of this study was to investigate the effect of twelve weeks Gum Arabic dose on the liver functions and some antioxidant enzymes activity of 10 Sprague-Dawley rats. Methods: 10 normal Sprague-Dawley rats were fed one liter 10% of gum Arabic solution daily for 12 weeks. As a control group another 10 rats were not fed with gum Arabic. On week twelve, blood samples were collected from each ...

Akram Arianfar Maryam Sardarodiyan, Masoomeh Mehraban Sang Atash

Nowadays the researches have indicated the fact that using synthetic antioxidants as food additives in edible oils can have adverse effects on human health. So preparing antioxidation resources for reduction of oxidation stress effects is important. The aim of this project was, representing a natural antioxidant source with frap test. The present study optimized the ultrasound assisted extracti...

2013
Nanfack Pauline Biapa Nya Prosper Cabral Pieme Constant Anatole Ama Moor Vicky Jocelyne Moukette Bruno Ngogang Yonkeu Jeanne

BACKGROUND Several plant extracts from Rutaceae family are currently used to the management of sickle cell disorder (SCD) in the African. Few reports have shown that extracts from Zanthoxyllum or Fagara genus demonstrated anti-sickling property. This study investigates the in vitro antisickling and antioxidant properties of extracts from Zanthoxyllum heitzii. METHODS The sickling of red blood...

2017
Maria Christina Dos Santos Verdam Fernanda Guilhon-Simplicio Kleyton Cardoso de Andrade Karina Lorena Meira Fernandes Tallita Marques Machado Felipe Moura Araújo da Silva Mayane Pereira de Souza Hector Henrique Ferreira Koolen Cristiane da Silva Paula Beatriz Cristina Konopatzki Hirota Vinícius Bednarczuk de Oliveira Cristina Mayumi Sasaki Miyazaki Milena Kalegari Marilis Dallarmi Miguel Patricia Maria Stuelp-Campelo Obdulio Gomes Miguel

Background. Byrsonima is a promising neotropical genus, rich in flavonoids and triterpenes, with several proven pharmacological properties. Nevertheless, Byrsonima duckeana W. R. Anderson is an Amazonian species almost not studied. Objective. To assess the antioxidant, anti-inflammatory, and analgesic activities of Byrsonima duckeana leaves. Materials and Methods. We analyzed an ethanol extract...

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