Resveratrol, (3, 5, 4'-trihydroxystilbene) is a non-flavonoid polyphenol stilbene synthesized by plants when damaged by infectious diseases or ionizing radiation. Although present in more than seventy plant species, grapes and wine are the major dietary contributors of resveratrol, responsible for 98% of the daily intake. In 1992, Renaud and De Lorgeril first linked wine polyphenols, including resveratrol, to the potential health benefits ascribed to regular and moderate wine consumption (the so called "French Paradox"). Since then, resveratrol has received increasing scientific interest, leading to research on its biological actions, and to a large number of published papers, which have been collected and discussed in this review. The relatively low amounts of resveratrol measured in wine following moderate consumption, however, may be insufficient to mitigate biological damage, such as that due to oxidative stress. On this basis, the authors also highlight the importance of viticulture and the winemaking process to enhance resveratrol concentrations in wine in order to bolster potential health benefits.
Abstract. There are many publications about the variables that influence the differentiation and the typicity of a "terroir". However, there are no publications that objectively determine the influence of a landscape on the "terroir".The hypothesis that 5 odorant compounds could come from the shrub flora of vitivinicultural geographical areas has been posed.The selected plant was jarilla (gender Larrea) and the study proceeded with leaves, stems, primary and secondary roots, flowers, pollen and fruits of jarilla in order to find in fact any of the 5 compounds.The methodology was to analyze the odorant components of jarilla, the jarilla's surrounding soils and vines of different geographical areas, the volatile compounds absorption by the vine roots and the mechanisms of volatile compounds setting of the bloom. For all the studies, there were seventy-one volatile compounds used as variables, obtained by gas chromatography, by application of a multivariate statistical model for classification and by cluster method.It was proved that there is a hierarchical relationship of the aromatic variables between pollen, roots and leaves of jarilla on one side, and the vineyards soils, vine blossoms and wines on the other.This study confirms that the volatile compounds of jarilla, arrive to the vineyards in form of pollen and fruits to be later absorbed by vine roots as well as by blooms, forming so an interactive ecosystem unity.It is concluded that the 5 volatile compounds could act as molecular markers of geographical areas.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.