BACKGROUND In vitro, the flavonoid components of red wine and purple grape juice are powerful antioxidants that induce endothelium-dependent vasodilation of vascular rings derived from rat aortas and human coronary arteries. Although improved endothelial function and inhibition of LDL oxidation may be potential mechanisms by which red wine and flavonoids reduce cardiovascular risk, the in vivo ...

Infusions and extracts of different grapes inactivated poliovirus; agents responsible for this property resided in the skin of the grape. Commercial grape juice at both natural and neutral pH inactivate various enteric viruses and herpes simplex virus; a 1,000-fold reduction in poliovirus infectivity occurred after incubation with grape juice, pH 7.0, for 24 h at 4 degrees C. A variety of wines...

Background: Dried fruit is one of the main sources of sulphur dioxide (SO2) exposure. The major goal of the current study was to determine SO2 concentration in some widely consumed dried fruits in Hamadan, Iran. In addition, an estimate of sulphite intake was made through the aforementioned dried fruit. Methods: Totally, 126 dried fruit samples were randomly collected from local market in Hama...

During alcoholic fermentation of must from dried grapes, yeasts are subjected to very high sugar concentrations, besides other environmental stresses, and they modify their metabolic behaviour giving low ethanol yield and abnormally high acetic acid production. To investigate the protective effect of catechin, inositol, and SO2 on wine yeasts, three thermotolerant strains of Saccharomyces cerev...

BACKGROUND/OBJECTIVES Red grape seeds as functional food are a good source of important bioactive components such as phenolics and antioxidants, which decrease oxidative stress that contributes to the pathogenesis of hepatotoxicity. The current study was conducted in order to evaluate the protective effect of red grape dried seeds (RGDS) on antioxidant properties, lipid metabolism, and liver an...

Grape anthocyanins not only play an important role in the colour quality of red wines but they also have many beneficial effects on human health, e.g., reduction of coronary heart disease incidence, or anticarcinogenic and antioxidant properties. Therefore, a rapid and efficient extraction technique prior to chromatographic analysis is of primary interest. Pressurised Fluid Extraction (PFE) pre...

Superheated hexane extraction has been tested for obtaining fatty acids from grape seed and compared with conventional Soxhlet and hot hexane extractions. Seeds from grape residues from a winery were dried for 46h at 105 degrees C, milled and sieved by particle size (d<0.42mm, 0.420.84mm). An optimization study of influential variables on superheated hexane extraction (namely ex...

have been known to decrease the platelet aggregation, oxidation of low-density lipoprotein cholesterols and endothelin synthesis and promote nitric oxide production. Indeed, red wine and/or grape juice have been demonstrated to prevent coronary heart disease in the epidemiological and clinical studies. Based on the information, a new beverage made of red wine vinegar and grape juice (Budo-nomeg...