Syrah through their partnership with Woodinville, Washington-based Columbia Winery and Master of Wine David Lake. Expanding at a significant rate, it is used to produce single-varietial wines as well as being blended with grapes such as Grenache, Cinsault, and Viognier. Syrah plantations in Argentina increased from less than in 1990 to in 2002. Syrah has occasionally been used as a blending component with Argentina's signature dark-skinned grape Malbec to provide an "Argentinian take" on the Australian Cabernet-Shiraz blend. Around 2005, there were of Syrah in Chile. Durif, or Petite Sirah, is a descendant of Syrah and Peloursin. It was propagated by
Phenolic content in wine tannins they increase the stability of a wines color-meaning that a wine will be able to maintain its coloring for a longer period of time. The amount of catechins present varies among grape varieties with varietals like Pinot noir having high concentrations while Merlot and especially Syrah have very low levels. As an antioxidant, there are some studies into the health benefits of moderate consumption of wines high in catechins. In red grapes, the main flavonol is on average quercetin, followed by myricetin, kaempferol, laricitrin, isorhamnetin, and syringetin. In white grapes, the main flavonol is quercetin, followed by kaempferol and