Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates

This study examines the impact of harvest date, temperature and precipitation on an accumulation of the volatile aromatic compounds in 'Cabernet Sauvignon' wine. The research was carried out in the vineyard of King Peter I Karadjordjevic, the Royal Winery in Oplenac, Serbia, during 2010 and 2011. In each year grapes were harvested twice - when the full maturity has been reached and 15 days later. Aromatic complexes of these 4 wines were analyzed using the Gas Chromatography Mass Spectrometry (GC-MS) and the Gas Chromatography with Flame Ionization Detector (GC-FID). Higher alcohols, lactones, organic acids, esters and amides were detected in wines. Relative portions of 34 aromatic compounds were compared for the full maturity harvests in the both experimental years, as well as their change from the first to the second harvest in each year.