Wine Aroma Analytical Investigation Progress on GC

There are more than 800 flavor components in wine.These odorants belong to different chemical classes: alcohols,esters,volatile phenols,terpenols,lactones,aromatic ketones;their concentrations range from less than 1 ug/L(aroma ketones) to more than 100mg/L(some alcohols);and they have quite different chemical and physicochemical properties.Thus,identification and quantification of wine flavor components are difficult.The aim of the review is to present current wine aroma analytical investigation progress on GC,including extraction,isolation,chromatographic identification and quantification steps.Research emphases of the future wine aroma research are also provided.