Syrah production. This made Shiraz the most planted variety in Australia and Australia the world's second largest Syrah/Shiraz grower, after France. Victorian regions include Heathcote, roughly 1.5 hours north of Melbourne. Cooler climate regions such as Western Australia's Margaret River produce Shiraz with marginally less alcohol content and often in a more traditional French style. A well-known example of the Shiraz grape in Australian viticulture is the Penfolds "Grange". This wine was created by winemaker Max Schubert in 1951 and has a reputation for aging well. The Penfolds Grange is predominantly Shiraz but often includes a small quantity of Cabernet Sauvignon.
Phenolic content in wine concentration in the skins of wine grapes. The accumulation in ripe berries of different concentrations of both bound and free resveratrols depends on the maturity level and is highly variable according to the genotype. Both red and white wine grape varieties contain resveratrol, but more frequent skin contact and maceration leads to red wines normally having ten times more resveratrol than white wines. Resveratrol produced by grape vines provides defense against microbes, and production can be further artificially stimulated by ultraviolet radiation. Grapevines in cool, damp regions with higher risk of grape diseases, such as Bordeaux and Burgundy, tend to