Port wine oxovitisin A, an oxovitisin, a type of pyranoanthocyanin with a 2-pyrone component. Port wine Port wine (also known as vinho do Porto, , Porto, and usually simply port) is a Portuguese fortified wine produced with distilled grape spirits exclusively in the Douro Valley in the northern provinces of Portugal. It is typically a sweet, red wine, often served as a dessert wine, though it also comes in dry, semi-dry, and white varieties. Fortified wines in the style of port are also produced outside Portugal, including in Australia, France, South Africa, Canada, India, Argentina, Spain, and the United States. Under European
Russian wine wine is produced in the area around Stavropol which has 180-190 frost free days. The region of Rostov is characterized by its hot, dry summers and severe winters which produces grapes in lower yields than other parts of the country. Nevertheless Rostov is a region with a great diversity of atochtonous grape varieties which originally from the Don Valley including sunch az Tsimlyankskiy Tchernyi, Kumshatskiy, Krasnostop Zolotovskiy, Plechistik and others Russia produces wine of several different styles including still, sparkling and dessert wine. Currently there are over 100 different varieties of grapes used in the production of Russian wine. The