Introduction
Aroma is one of the most important quality attributes of fruitswhich comprising a complex mixture of volatile organic com-pounds (VOCs) is important for sensory quality. Many volatilecompounds (VOC) occurring in fruits contribute to aroma andflavour, either positively, creating a pleasant impression, or as offtaints [1]. These flavour impact substances cover a wide range ofchemical classes, such as acetate esters for example, contributing tothe “fruity” flavour of apples [2–4], or the group of C6 compounds(green leaf volatile compounds), which contribute to a “grassy”or “green” odour description [1] in grapes. Determination of thevolatile composition of fruits may also help to predict the qualityof juices or wines which can be produced [5,6].