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Since ancient times to present, grapes have been important to man, as they were considered to be healthy food due to their phytonutrients: polyphenol antioxidants, vitamins and minerals. The preliminary researches highlight the health-related benefits of red grapes, due to their antioxidant, antiseptic and anti-inflammatory properties. Starting from this information, compared researches have been conducted so as to highlight the evolution of some biological, technological and biochemical properties of three varieties of grapes for the red wines: Feteasca neagra, Pinot noir and Merlot, in two conventional and organic agricultural systems. The yield was analysed in both systems and the results showed some differences. Special attention has been attached to the polyphenol potential of the varieties. The polyphenols have a good potential to be introduced in human medicine as primary compounds of several medicines. The studies were carried out in 2017 at the French-Romanian Estates, where the organic agricultural system was applied, and the Research and Development Institute for Viticulture and Oenology Valea Calugareasca, which uses a conventional agricultural system. [ABSTRACT FROM AUTHOR]

Lately, there has been a special interest in scientific research in viticulture and winemaking regarding the content of different chemical compounds. These have been shown to have a positive impact on consumer health. Preliminary research highlights the benefits of red grapes on health through its antioxidant, antiseptic, antiinflammatory properties. The study was carried out on the Muscat of Hamburg variety during 2017 in two wine-growing areas: the Research and Development Institute for Viticulture and Wine Production Valea Călugărească where the conventional culture system was applied and the Franco-Romanian Areas where the varieties were cultivated in an ecological system, being ECOCERT RO-007 certified. Research has been carried out on the Muscat of Hamburg variety which has highlighted the content of some polyphenolic compounds comparatively in the two culture systems: conventional and ecological. The analysis of the agrobiological and technological indicators according to the ecological and agrofitotechnical supply was performed. The qualitative, productivity and yield potential of the variety has been established under the impact of the two culture systems. [ABSTRACT FROM AUTHOR]