Free radical
Comparation of free radical scavenging activity between seven species of Passiflora L.
... scavenge free radicals the absorption is inhibited and the colorations ...the free radical scavenging activity of the evaluated samples (MATHIESEN, 1997; LEHUÉDÉ, ...
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Habitat of in vivo transformation influences the levels of free radical scavengers in Clinostomum complanatum: implications for free radical scavenger based vaccines against trematode infections.
... the free radical scavengers of the larva are only sufficient to combat the initial exposure to free radicals encountered by the parasite within the definitive ...available free radical ...
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Free radical-scavenging activity and flavonoid contents of Polygonum orientale leaf, stem, and seed extracts
... Spectrophotometric analyses were recorded on a Shimadzu UV-2450 spectrophotometer (Tokyo, Japan) to determine DPPH scavenging. The effect of taxifolin on free radical scavenging was assayed according to ...
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PRODUCTION OF CASTOR OIL MALEATE USING DI-TERT-BUTYL PEROXIDE AS FREE RADICAL CATALYST
... Abstract - Castor oil maleate is used in healthcare products, synthetic lubricants, drying oils, water-soluble paints and as a monomer in several polymers. This compound is formed by direct reaction between castor oil ...
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Nonspecific blockade of vascular free radical signals by methylated arginine analogues
... of free radicals triggered by in- creases in shear ...in free radical signals was completely abol- ished by removal of the endothelium or by native superoxide dismutase and those sig- nals were ...
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Free radical scavenging activity of Berberine in acetaminophen induced liver injury
... three decades as an antidote for AAP toxicity. [5,6] Clinical effi- cacy of NAC is well established. Clinically it is utilized for the chronic obstructive pulmonary disease (COPD) and contrast- induced nephropathy. [6-8] ...
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Molecular mobility of n-ethylene glycol dimethacrylate glass formers upon free radical polymerization
... the free radical polymerization, and this was completely developed in the Centre of Biomaterials of Valencia, the only equipment described in detail will be that used in that ...
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Antioxidant activity of caffeic acid against Iron-induced Free Radical Generation : a chemical approach
... “classical” scavenger molecules, such as mannitol and thiourea (both in milimolar concentra- tions), show that the percent of inhibition decreases with the augment in the 2-DR concentra- tion (from 3 to 70 mM) [29]. This ...
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Free Radical Scavenging Activity of Ethanolic Extracts from Herbs and Spices Commercialized in Brazil
... highest free radical scavenging capacities, while onion showed negligible activity and colorifico, one of the most consumed spices in Brazil, showed low ABTS •+ scavenging ...
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Chemical Composition, and Antibacterial (against Staphylococcus aureus) and Free-Radical-Scavenging Activities of the Essential Oil of Scrophularia amplexicaulis Benth.
... Abstract: Chemical composition of the essential oil obtained from the aerial parts of Scrophularia amplexicaulis Benth. was analyzed, for the first time, by the gas chromatography/mass spectrometry (GC-MS) and gas ...
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SCREENING OF FREE RADICAL SCAVENGING ACTIVITY OF AROGYAVARDHINI VATI
... of free radicals that are solely responsible for aging, cancer, atherosclerosis as well as a degenerative process happening in the ...and free from ...have free radical scavenging ...
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Apocynin: Chemical and biophysical properties of a NADPH oxidase inhibitor
... weak free radical scavenger, hence the direct antiradical activity of apocynin cannot be responsible for the myriad pharmacological effects that have been proposed for this structurally simple, but ...
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Rev. bras. farmacogn. vol.21 número6
... antimalarial, free-radical-scavenging and insecticidal properties, using the heme biocrystallisation and inhibition assay, the DPPH assay and the contact toxicity bioassay using the pest Tribolium ...
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Chemical Composition, Antioxidant Capacity, Acetyl- and Butyrylcholinesterase Inhibitory Activities of the Essential Oil of Thymus haussknechtii Velen.
... DPPH free radical, superoxide anion radical and hydrogen peroxide scavenging activities along with ferrous ion-chelating power test, ABTS radical cation decolorization assay and ferric ...
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Avaliação da actividade antioxidante da folha e fruto da espécie Dracaena draco L
... induce free-radical chain oxidation in erythrocytes, aqueous peroxyl radicals were generated by thermal decomposition of AAPH (dissolved in PBS; final concentration 50 ...
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Rev. bras. farmacogn. vol.22 número1
... polysaccharides, the presence of the sulfate groups lead to the diminution of hydroxyl groups, which resulted in the descent of the reducing power, which may explain the lower SPSG reducing power activity compared to ...
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Rev. bras. farmacogn. vol.21 número5
... Abstract: Phytochemicals are highly concentrated in berries, especially polyphenols as anthocyanins and ellagitannins. These compounds have been associated with antioxidant capacity, lipid peroxidation protection, ...
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Antioxidant Flavonoids from Nepeta floccosa Benth.
... (Table 2). The results indicated that the antioxidant activity of the isolated flavonoids strongly depend on the positions and the number of oxygenated substituents. Compound 1 and 2 have more number of oxygenated ...
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Rev. bras. farmacogn. vol.22 número3
... the free radical scavenging activity against DPPH, hydroxyl radicals and in vitro lipid poroxidation assay was performed for EtHI and ...potent free radical scavenger with minimum IC50 values ...
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Preparation of macrofungi extracts
... and free radical scavenging properties of four wild mushrooms, Termitomyces clypeatus, Termitomyces robustus, Lentinus subnudus and Lenzites species, obtained from Ado Ekiti, ...
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