It’s rich in potential polyphenols, i.e. micronutrients that more and more often capture the attention of scholars and doctors. The research carried out in Slovenia on the wine there called Modra Frankinja - (synonyms: Blaufränkish in Austria, Lemberger in Germany, Frankovka in Czech and Slovak Republics, Kékfrankos in Hungary) Franconia in Italy, cultivated for decades on the Moletto’s lands - has shown that genetically it’s the variety with the highest content of resveratrol in its grapes. The research was conducted as a part of the Agrotur project, financed within the program of the Cross Border Cooperation Italy-Slovenia 2007-2013, by the European Fund of regional development and by National Funds, involving among others the Universities of Trieste, Nova Gorica, Udine, the Association for Protection of Collio and Carso Wines.

Resveratrol is a phytoalexin that protects the skin of the grapes from UV rays and prevents the development of grey mould. In addition to anthocyanins, resveratrol is one of the most well-known bioactive principles from those present in wine. After its discovery it has become the subject of numerous dietary studies that have confirmed its positive influence on human nutrition. “The scholars – it’s a passage from the research - suggest that resveratrol is one of the substances that help to reduce the number of heart disease of people who regularly consume wine with the main meals. The content of resveratrol in wine is determined by the variety, the type of wine, geographical origin, the type of cultivation and by environmental factors. Vrhovŝek (1998) compared the concentration of resveratrol in different varieties and vintages of red wines - (there is a greater presence of resveratrol in red wines than whites and rosés). The maximum concentration values were determined in the variety Blaufrankish (Franconia) (12.6 mg / L), followed by Pinot Noir (12.2 mg / L), Refosco (11.9 mg / L), Merlot (8, 2 mg / L) and Cabernet Sauvignon (5.5 mg / L). " 

So the Moletto’s Franconia wine is not only a splendid red, but it's also good for health. The scientific research are also studding the beneficial effects of resveratrol on the prevention of neurodegenerative and neoplastic diseases. The subject passionate the scholars all over the world. The research is proceeding in Canada, in British Columbia. The grape Blaufränkish is cultivated there in the Okanagan Valley area.