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[Analysis of pro/antioxidant properties of water and water solutions].

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The ability of water preparations of different composition to affect the generation of superoxide radicals has been compared. The superoxygenating reaction of adrenaline autoxidation with some modifications was used as a model system, which makes it possible to reveal the pro/antioxidant properties

Fluorescent Pseudomonas strains from mid-mountain water able to release antioxidant proteins directly into water.

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Little is known about fluorescent Pseudomonas and investigations are needed to help us better understand how their species work. The aim was here to mimic what naturally occurs in environmental water containing strains isolated from mid-mountain water samples and identified as Pseudomonas

Monitoring of the antioxidant BHT and its metabolite BHT-CHO in German river water and ground water.

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The behavior of anthropogenic polar organic compounds in ground water during infiltration of river water to ground water was studied at the Oderbruch area on the eastern border of Germany. Additionally, waste water sewage treatment works (STWs) discharging their treated waste water into the Oder

Inhibition of β-carotene degradation in oil-in-water nanoemulsions: influence of oil-soluble and water-soluble antioxidants.

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The utilisation of carotenoids as functional ingredients (pigments and nutraceuticals) in many food and beverage products is currently limited because of their poor water-solubility, high melting point, chemical instability, and low bioavailability. This study examined the impact of antioxidants on

Antioxidant activity of water-soluble chitosan derivatives.

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Water-soluble chitosan derivatives were prepared by graft copolymerization of maleic acid sodium onto hydroxypropyl chitosan and carboxymethyl chitosan sodium. Their scavenging activities against hydroxyl radical *OH were investigated by chemiluminescence technique. They exhibit IC(50) values

On the efficiency of water soluble antioxidants.

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The wide use of high intensity ultrasound (HIU) in modern medicine raises the question of bio-safety. It has been shown that the effect of HIU in biological media may have similarity to the effects of ionizing radiation. Exposure of biological media to HIU field may lead to cavitation phenomenon

Plant growth, water and proline content and total antioxidant capacity (TAC) in strawberry cv. 'elsanta' under water deficit.

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Activities of antioxidants are affected by colloidal properties of oil-in-water and water-in-oil emulsions and bulk oils.

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The activity of alpha-tocopherol, Trolox, propyl gallate, gallic acid, methyl carnosoate, and carnosic acid was studied in two oil-in-water (o/w) emulsions, in two water-in-oil (w/o) emulsions, and in bulk oil with and without added emulsifiers. All antioxidants had either moderate or higher

Effects of water-soluble natural antioxidants on photosensitized oxidation of conjugated linoleic acid in an oil-in-water emulsion system.

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The effect of photosensitized oxidation of conjugated linoleic acid in an oil-in-water (o/w) emulsion system was studied. Water-soluble natural antioxidants, including apple polyphenols from apple extract, green tea extract, 4-hydroxy-2(or 5)-ethyl-5(or2)-methyl-3(2H)-furanone(HEMF),

How curcumin works preferentially with water soluble antioxidants.

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In this study we investigated physicochemical characteristics of the curcumin radical by pulse radiolysis and laser flash photolysis. Two methylated curcumin derivatives, methylcurcumin and trimethylcurcumin, were synthesized to explore the role of phenol hydroxy and beta-diketone moieties in the

On-line coupled superheated water extraction (SWE) and superheated water chromatography (SWC).

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Superheated water extraction has been linked directly to a superheated water chromatographic separation so that the process of sample extraction and separation can be achieved without the need for organic solvents at any stage. A model matrix spiked with pharmaceuticals and antioxidants was

The Antioxidant Activity of Quercetin in Water Solution.

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Despite its importance, little is known about the absolute performance and the mechanism for quercetin's antioxidant activity in water solution. We have investigated this aspect by combining differential oxygen-uptake kinetic measurements and B3LYP/6311+g (d,p) calculations. At pH = 2.1 (30 °C),

Oxidation of synthetic phenolic antioxidants during water chlorination.

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The degradation of seven phenolic antioxidants and metabolites during chlorination was investigated. Under strong chlorination conditions (10 mg L(-1) chlorine, 24h), five of the target compounds were significantly degraded, while only BHT-Q (2,6-di-tert-butylcyclohexa-2,5-diene-1,4-dione) and

Antioxidant activity of water extract of Scoparia dulcis.

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An aqueous extract of Scoparia dulcis showed marked antioxidative activity in vitro, which supports the therapeutic effects claimed by traditional practitioners.

Effect of Antioxidant Water on the Bioactivities of Cells.

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It has been reported that water at the interface of a hydrophilic thin film forms an exclusion zone, which has a higher density than ordinary water. A similar phenomenon was observed for a hydrated hydrophilic ceramic powder, and water turns into a three-dimensional cell-like structure composed of

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