Natural antioxidants compounds are present in leaf, rhizome, stem, fruits, vegetables, tea etc. They are recognized as important compounds in conferring stability against oxidation in vitro. Natural antioxidant compounds can be classified into Exogenous antioxidants and Endogenous antioxidants, Enzymatic and NonEnzymatic antioxidants. Naturally occurring antioxidants compounds are carotenoids, ...

The effect of pressure-assisted thermal processing (PATP) in combination with seven synthetic antioxidants was evaluated on the retention of conjugated linoleic acid (CLA) in enriched milk. Milk rich in CLA was first saturated with oxygen, followed by the addition of either catechin, cysteine, ascorbic acid, tannic acid, gallic acid, caffeic acid or p-coumaric acid (500 mg kg-¹ untreated milk)....

Ten prominent dimethoxyphenols were determined in birchwood smoke from choked and open laboratory burning and in chimney smoke from a tiled stove. The structures of the methoxyphenols are similar to those of the well-known tocopherol and ubiquinol antioxidants. The 2,6-dimethoxyphenols characterising hardwood smoke are stronger antioxidants than the corresponding 2-methoxyphenols present mainly...

Background: Considering the wide consumption of some synthetic antioxidants and their probable negative health effects, in this study, the protective effects of Satureja hortensis L. extracts in stabilizing soybean oil against oxidation at different concentrations (200 and 400 ppm) were tested. Methods: The aerial parts of S. hortensis L. were collected from Isfahan province and extracted with...

The antioxidant activities of crude extract of Phaulopsis fascisepala leaf were evaluated and compared with alpha-tocopherol and BHT as synthetic antioxidants and ascorbic acid as natural-based antioxidant. In vitro, we studied its antioxidative activities, radical-scavenging effects, Fe(2+)-chelating ability and reducing power. The total phenolic content was determined and expressed in gallic ...

The protective effect of olive mill pomace (OMP) loaded ethylcellulose microparticles as an alternative to synthetic antioxidants against the oxidation oils was assessed. OMP extract obtained by optimized two-step solid-liquid extraction; encapsulation performed double emulsion solvent evaporation technique considering a theoretical loading content in phenolic compounds 5% (w/w). changes peroxi...

Both synthetic and natural antioxidants are using in the food industries. The evaluation of the former showed its potential carcinogenic effects. So, different studies focused on natural materials as the rich source of antioxidant compounds. The aim of the present study was to evaluate some chemical properties of watermelon peel (WMP). So the minerals content, physicochemical parameters, antiox...