• Nenhum resultado encontrado

Scavenging activity

Kinetic behaviour of DPPH radical scavenging activity of tomato waste extracts

Kinetic behaviour of DPPH radical scavenging activity of tomato waste extracts

... radicals scavenging activity of tomato waste extracts (obtained from six genotypes) was applied to determine their kinetic ...the activity of an antioxidant, but also provides information on how ...

9

Radical scavenging activity of crude polysaccharides from Camellia sinensis

Radical scavenging activity of crude polysaccharides from Camellia sinensis

... materials of the coarse tea signiicantly afected the physiochemical and structural features of TPS (Nie and Xie, 2010). In this study, a diferent molecu- lar weight of low-grade coarse tea polysaccharides (TPS) was ...

5

Free Radical Scavenging Activity of Ethanolic Extracts from Herbs and Spices Commercialized in Brazil

Free Radical Scavenging Activity of Ethanolic Extracts from Herbs and Spices Commercialized in Brazil

... radical scavenging activity are also found in the ...% activity (Capecka et al., 2005), similar to 80 % of activity obtained for both aqueous and methanolic extracts of this spice (Cervato et ...

8

Comparation of free radical scavenging activity between seven species of Passiflora L.

Comparation of free radical scavenging activity between seven species of Passiflora L.

... Antioxidant capacities of seven species of Passiflora were evaluated through comparation of the free radical DPPH scavenging activity. The studied species included cultivated and traditionally used P. ...

4

Free radical scavenging activity of Berberine in acetaminophen induced liver injury

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] ...

10

Potential Superoxide Anion Radical Scavenging Activity of Doum Palm ( Hyphaene thebaica L.) Leaves Extract

Potential Superoxide Anion Radical Scavenging Activity of Doum Palm ( Hyphaene thebaica L.) Leaves Extract

... The superoxide anion radical scavenging activity test of the aqueous ethanolic extract of doum leaves was assessed according to the method of Owen et al. [15,16]. The aqueous- ethanolic extract of doum ...

11

SCREENING OF FREE RADICAL SCAVENGING ACTIVITY OF AROGYAVARDHINI VATI

SCREENING OF FREE RADICAL SCAVENGING ACTIVITY OF AROGYAVARDHINI VATI

... The activity of Superoxide dismutase was found to be less i.e. 28.3 units/mg protein, 26.5 units/mg protein, 22.6 units/mg protein in homogenate treated with only Carbon tetra chloride. It may be due to oxidative ...

5

PHYTOCHEMICAL INVESTIGATION AND IN VITRO ANTIOXIDANT ACTIVITY OF SOME MEDICINALY IMPORTANT PLANTS OF UTTARAKHAND

PHYTOCHEMICAL INVESTIGATION AND IN VITRO ANTIOXIDANT ACTIVITY OF SOME MEDICINALY IMPORTANT PLANTS OF UTTARAKHAND

... Antioxidants are the substances, compounds or nutrients in our foods which can prevent or slow oxidative damage to our bodies. These agents are able to remove the deleterious effects of free radicals within our body. ...

7

DEVELOPMENT OF ANTIOXIDANT POLY(THIOETHER-ESTER) NANOPARTICLES

DEVELOPMENT OF ANTIOXIDANT POLY(THIOETHER-ESTER) NANOPARTICLES

... antioxidant activity, confirmed by DPPH free radical scavenging activity and β-carotene/linoleic acid assay, probably due to polymer oxidation during the process, which is able to donate hydrogen or ...

8

Rev. bras. farmacogn.  vol.27 número3

Rev. bras. farmacogn. vol.27 número3

... Choisya ternata Kunth, C. ternata var. sundance Kunth and the hybrid Choisya ‘Aztec-Pearl’ are three related species belonging to the Rutaceae family. Ethanol extracts were prepared from the leaves of these three species ...

5

Optimization of extraction parameters on the antioxidant properties of banana waste

Optimization of extraction parameters on the antioxidant properties of banana waste

... Measurement of the ability of the sample extract to scavenge free radicals was determined based on a method described by Brand-Williams et al. (1λλ5) with slight modifi cations. An aliquot of 4 mL of ex- tract was mixed ...

14

Investigation of antioxidative, antityrosinase and cytotoxic effects of extract of irradiated oyster mushroom

Investigation of antioxidative, antityrosinase and cytotoxic effects of extract of irradiated oyster mushroom

... radical scavenging is one of the mechanisms in inhibiting lipid oxidation commonly used to estimate anti- oxidant activity (Pornariya and Kanok-Orn, ...radical scavenging activity of mushroom ...

9

J. Braz. Chem. Soc.  vol.19 número5

J. Braz. Chem. Soc. vol.19 número5

... radical scavenging activity, attesting to the feasibility of HPLC microfractionation as an analytical- scale procedure for obtaining enriched fractions for further ...

9

Novel chromone and xanthone derivatives: Synthesis and ROSRNS scavenging activities

Novel chromone and xanthone derivatives: Synthesis and ROSRNS scavenging activities

... the scavenging activity of these compounds ...the scavenging effect of chromones 12a and 12b due to the pre- cipitation that occurred in the tested ...

12

GC–MS profiling of bioactive extracts from Haberlea rhodopensis: an endemic resurrection plant

GC–MS profiling of bioactive extracts from Haberlea rhodopensis: an endemic resurrection plant

... radical scavenging activity assays (Table I) showed that the polar fractions of both desiccated and fresh samples possessed strong antioxidant activity; the fraction from the desiccated leaves being ...

10

Free-Radical Scavenging Capacity and Antioxidant Properties of Some Selected Onions (Allium cepa L.) and Garlic (Allium sativum L.) Extracts

Free-Radical Scavenging Capacity and Antioxidant Properties of Some Selected Onions (Allium cepa L.) and Garlic (Allium sativum L.) Extracts

... extracts is not well documented. Nevertheless, Duh et al. (1999) reported similar results for Chrysanthemum morifolium with high relationship between phenolics content and scavenging activity of the water ...

7

Influence of preparation procedures on the phenolic content, antioxidant and antidiabetic activities of green and black teas

Influence of preparation procedures on the phenolic content, antioxidant and antidiabetic activities of green and black teas

... radical scavenging activity and the α-glucosidase inhibitory activity were ...antioxidant activity were obtained when using lower mineralized ...antioxidant activity than loose-leaf ...

10

Bridging the gap to non-toxic fungal control: lupinus-derived blad-containing ologomer as a novel candidate to combat human pathgenic fungi

Bridging the gap to non-toxic fungal control: lupinus-derived blad-containing ologomer as a novel candidate to combat human pathgenic fungi

... BCO activity was further elucidated in ...the activity or structure of BCO, and suggest that interference with iron homeostasis and/or other iron metabolic reactions are involved in BCO mode of ...binding ...

12

HPLC analysis of phenolic compounds in extract

HPLC analysis of phenolic compounds in extract

... antioxidant activity of a quercetin-containing flavonoid extract (QFЕ) obtained from Sophora japonica ...Radical scavenging activity was analyzed towards the synthetic radicals DPPH • and ABTS •+ and ...

8

The Pharmacological Importance of Benincasa hispida. A review

The Pharmacological Importance of Benincasa hispida. A review

... as scavenging activity, ferric reducing activity and -arotene bleaching ...for scavenging activity, ferric reducing activity and –carotene bleaching assays and also exhibited ...

6

Show all 8150 documents...

temas relacionados