Effects of raw material on the partition of some volatile compounds of grappa, a typical Italian spirit

摘要: Abstract Fractional distillation was used to study the effect of raw materials on grappa composition. Grape marc and grape with addition an amount wine lees (42%) greater than European Community regulation's limit (25%) permits were investigated. The concentration all volatile compounds considered, percentage extraction acetalde‐hyde, methanol, ethylacetate ethyl lactate, but not kinetics higher alcohols, acetic acid are affected by this marc. Overall, hygienic characteristics improved.