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Beneficial Effects of Grapes and Wines

Issues Relevant to the Development, Safety, and Commercialization of Grape Phytochemicals [Pg.497]

Grapes and wines have been shown to possess antioxidant activity. [Pg.497]

Anthoeyanin pigments act as powerful antioxidants to help protect the plant from radieals formed during metabolic processes and from UV light. A positive correlation was found between anthoeyanin content and antioxidant activities of red grape extracts (Meyer et al 1997), grape juices, and red wines (Bums et al. 2000). Consumption of antho-cyanin-replete diets in rats significantly improved ip 0.01) plasma antioxidant capacity and decreased ip 0.001) vitamin E deficiency- [Pg.498]

Epidemiological studies have revealed that despite a diet of high animal fat intake, mortality due to arteriosclerosis-induced myocardial [Pg.499]

BIQACTIVE COMPONENTS AND HEALTH BENEFITS IN GRAPES AND WINES [Pg.500]


Resveratrol is another type of polyphenol, a stilbene derivative, that has assumed greater relevance in recent years as a constituent of grapes and wine, as well as other food products, with antioxidant, anti-inflammatory, anti-platelet, and cancer preventative properties. Coupled with the cardiovascular benefits of moderate amounts of alcohol, and the beneficial antioxidant effects of flavonoids, red wine has now emerged as an unlikely but most acceptable medicinal agent. [Pg.338]

The anti-carcinogenic effects of resveratrol were also tested in vivo, by examination of mammary glands of mice treated with DMBA and TPA. A dose-dependent reduction in the formation of tumors was observed when the mice were treated with resveratrol. Resveratrol is present in high concentrations in the skins of grapes (50-100 pg/g) and, consequently, in red wine (1.5-3 mg/1). Based on these experiments, the consumption of grapes and grape products appears to have beneficial effects. [Pg.247]

In the past decades, the increased consumption of table grapes and wines has been encouraged by the amply demonstrated beneficial effects of these substances on human illness, such as cardiovascular diseases, brain degeneration, and certain carcinogenic diseases (Caillet et al., 2006 Cheng et al, 2007). [Pg.238]

The beneficial effects of wine may not be attributable to a single polyphenol but rather to the complex mixture of polyphenols it contains. There is evidence that antioxidant properties underlie most of the effects of wine, but at the same time, certain effects cannot be mimicked by common dietary antioxidants. Although polyphenols are not a panacea, those present in red grape and its derivatives appear to exert beneficial effects on health. [Pg.581]

Trau -resveratrol is added to several dietary supplements with the assumption that it will have the beneficial effects of red wine. This assumption has not yet been tested scientifically. Grape and wine are very complicated mixtures of chemicals, so other compounds, thus far unknown, may also be highly significant. Individual differences in human life styles may add a large amount of deviation to any observations. Resveratrol is sensitive to oxidation in capsules, its aetual amount may be much lower than the label says. In such a concentrate, resveratrol is not protected from oxidation by other components present in red wine. [Pg.69]

An interesting case is the prevention of cardio-vascular diseases as a result of the consumption of wine. Like most fruits grapes are rich in polyphenols, and the process of wine making results in the concentration of polyphenols. Wine polyphenols are considered to have beneficial effects on coronary heart disease and atherosclerosis. The presence of polyphenols in wine are thought to be the reason for the French paradox France was shown to have a coronary mortality rate close to that of China and Japan in spite of the high amount of saturated fat and cholesterol levels in the French diet. The consumption of red wine in France, however, is considerably higher than in either China or Japan (Staggs, 1996). [Pg.239]

Control of bacteria development is essential for the production of wines with consistent compositional and sensory characteristics. Although malolactic fermentation (MLF) is frequently carried out in the winery due to its beneficial effects on wine aroma and palate, for certain grape varieties and wine styles MLF is considered detrimental. Moreover, even in the cases where MLF is desirable, the wine might... [Pg.107]

Flavonoids represent one class of bioactive compounds that may have multiple beneficial effects on several chronic diseases [3-4]. Cocoa represents an example of a potentially rich dietary source of flavonoids. High concentrations of flavonoids are present in certain cocoas, predominately as the flavanol monomers (-)-epicatechin (epicatechin) and (+)-catechin (catechin), and as oligomers of these monomeric base units which are known as the procyanidins (Figure 1) [5]. Other potential rich dietary sources of flavonoids include tea, wine, grape juice, apples, onions and certain nuts. [Pg.25]

Due to the beneficial health effects of trans-resveratrol in grape wine, many methods have been developed for its detection and quantification.1 In our laboratory, a MIP-based CL imaging sensor for determination of tram-resveratro 1 in grape wine has been developed. The MIP of trans-resveratro 1 was prepared by a precipitation polymerization using trans-resveratrol as the target molecule,... [Pg.162]


See other pages where Beneficial Effects of Grapes and Wines is mentioned: [Pg.497]    [Pg.497]    [Pg.499]    [Pg.501]    [Pg.503]    [Pg.505]    [Pg.507]    [Pg.509]    [Pg.511]    [Pg.497]    [Pg.497]    [Pg.499]    [Pg.501]    [Pg.503]    [Pg.505]    [Pg.507]    [Pg.509]    [Pg.511]    [Pg.146]    [Pg.429]    [Pg.104]    [Pg.578]    [Pg.81]    [Pg.82]    [Pg.358]    [Pg.369]    [Pg.463]    [Pg.1006]    [Pg.2183]    [Pg.2371]    [Pg.289]    [Pg.182]    [Pg.5]    [Pg.1497]    [Pg.607]    [Pg.932]    [Pg.378]    [Pg.337]    [Pg.332]    [Pg.154]    [Pg.240]    [Pg.209]    [Pg.31]    [Pg.163]    [Pg.57]    [Pg.2099]    [Pg.543]    [Pg.125]    [Pg.2177]    [Pg.2285]   


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