Results 11 to 20 of about 722,140 (315)

A Brief Overview on Antioxidant Activity Determination of Silver Nanoparticles

open access: yesMolecules, 2020
Our objective in this review article is to find out relevant information about methods of determination of antioxidant activity of silver nanoparticles.
Zdenka Bedlovičová   +3 more
doaj   +3 more sources

Antimutagenic and antioxidant activity of novel 4-substituted phenyl-2,2'-bichalcophenes and aza-analogs [PDF]

open access: yesDrug Design, Development and Therapy, 2013
Wael M El-Sayed,1,2 Warda A Hussin31King Faisal University, Faculty of Science, Departments of Biological Sciences and Chemistry, Al-Hufof, Ahsa, Kingdom of Saudi Arabia; 2University of Ain Shams, Faculty of Science, Department of Zoology, Cairo, Egypt ...
El-Sayed WM, Hussin WA
doaj   +1 more source

Determination of total antioxidant content of methanolic extracts of Cynara scolymus, Echinacea purpurea and Portulaca oleracea [PDF]

open access: yes, 2022
Background: The unique properties of medicinal plants particularly their effects on human health have attracted the attention of many researchers.
Darvishi, Mohammad   +17 more
core   +2 more sources

Peptide Inhibitor of Complement C1 (PIC1) demonstrates antioxidant activity via single electron transport (SET) and hydrogen atom transfer (HAT). [PDF]

open access: yesPLoS ONE, 2018
Reactive oxygen species (ROS) are natural byproducts of oxidative respiration that are toxic to organs and tissues. To mitigate ROS damage, organisms have evolved a variety of antioxidant systems to counteract these harmful molecules, however in certain ...
Magdielis Gregory Rivera   +3 more
doaj   +1 more source

Differences In the Antioxidant Activity of Sungkai Leaf Extract Using Methanol And Aquades Solvents

open access: yesAgritepa, 2023
The antioxidant activity of natural product extracts is influenced by the type of solvent that plays an active role in binding secondary metabolites such as saponins and flavonoids. Sungkai leaves (Peronema canescens Jack) are plants that have been shown
Dira Irnameria, Yenni Okfrianti
doaj   +1 more source

Antioxidant Activities of Hydroxylated Naphthalenes: The Role of Aryloxyl Radicals [PDF]

open access: yes, 2023
Herein is delineated a first systematic framework for the definition of structure-antioxidant property relationships in the dihydroxynaphthalene (DHN) series.
d'Ischia, Marco   +7 more
core   +1 more source

Formulation and Antioxidant Activity Test of Rice Bran Extract Cream from Two Varieties of White Rice

open access: yesMajalah Obat Tradisional, 2023
Rice bran extract contains high antioxidant compounds. Formulation and antioxidant activity testing of cream preparations containing rice bran extract has been carried out.
Wira Noviana Suhery   +4 more
doaj   +1 more source

Antioxidant activity of propolis

open access: yesPesquisa Agropecuária Tropical, 2014
Propolis is a resinous substance collected by bees from many parts of plants and mixed with wax, pollen and salivary secretions. Its composition is complex and closely related to the vegetation features of each region.
Adriane Alexandre Machado De-Melo   +4 more
doaj   +1 more source

Determination of the best method for processing gambier liquid by-product [Uncaria gambir (hunter) roxb] as natural antioxidant sources

open access: yesJournal of the Indonesian Tropical Animal Agriculture, 2021
The study was conducted to determine the best gambier liquid by-product (GLB) processing methods based on antioxidant activity as natural antioxidant sources.
A. S. Ismail   +3 more
doaj   +1 more source

Comparison of different methods for extraction from Tetraclinis articulata: Yield, chemical composition and antioxidant activity [PDF]

open access: yes, 2013
In the present study, three techniques of extraction: hydrodistillation (HD), solvent extraction (conventional ‘Soxhlet’ technique) and an innovative technique, i.e., the supercritical fluid extraction (SFE), were applied to ground Tetraclinis articulata
Romdhane, Mehrez   +4 more
core   +1 more source

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