Syrah African wines. In the United States, wine produced from the grape is normally called by its French name, "Syrah". However, in cases where winemakers choose to follow a New World style, similar to Penfolds Grange, they may choose to label their wines as "Shiraz". Under American wine laws, either name may appear on the label. Syrah first appeared as a wine grape in California in the 1970s, where it was planted by a group of viticulturists who called themselves "Rhône rangers". Although most plantings of the grape are in California, there are increasing amounts of it being grown in Washington
Phenolic content in wine produce grapes with higher levels of resveratrol than warmer, drier wine regions such as California and Australia. Different grape varieties tend to have differing levels, with Muscadines and the Pinot family having high levels while the Cabernet family has lower levels of resveratrol. In the late 20th century interest in the possible health benefits of resveratrol in wine was spurred by discussion of the French paradox involving the health of wine drinkers in France. Piceatannol is also present in grape from where it can be extracted and found in red wine. Vanillin is a phenolic aldehyde most commonly associated with