Applications of an oak extract on Petit Verdot grapevines. Influence on grape and wine volatile compounds

► Application of aqueous French oak extracts to grapevines. ► Volatile compounds from the oak extract formulations were probably stored into the berries as non-volatile precursors. ► The aroma precursors were released after the winemaking process. ► The capacity to change the aroma composition of red grapes and wines were observed.