Volatile profile of wine Teran PTP | Aromatične spojine vina teran PTP

English. Teran PTP is a protected wine with a recognized traditional denomination produced from a grapevine variety ‘Refošk’ in winegrowing district Kras in Slovenia (European Union, 2009; Pravilnik, 2008). The aromatic profile of 82 Teran PTP wines produced in years 2011, 2012 and 2013 was monitored. Intotal the content of 16 volatile compounds was determined. The volatile compounds from wine were extracted following the liquid-liquid extraction and determined with a GC-MS method. The odour activity values and relative odour contributions were calculated for each volatile compound identified. Among sensorial important volatiles the highest odour activity values were determined for ethyl octanoate, ethyl hexanoate, isoamyl acetate and ethyl butyrate. Other research papers also showed, that all red wines investigated except one contained ethyl octanoate, ethyl hexanoate, isoamyl acetate and ethyl butyrate above sensory thresholds.

Slovenian. Vino Teran PTP je zaščiteno vino s priznanim tradicionalnim poimenovanjem, ki ga pridelujejo iz grozdja sorte ꞌRefoškꞌ v vinorodnem okolišu Kras v Sloveniji (European Union, 2009; Pravilnik, 2008). Aromatični profil vina Teran PTP smo spremljali tri leta v 82 vzorcih iz letnikov 2011, 2012 in 2013. Določevali smo vsebnost 16 hlapnih spojin. Za določitev hlapnih spojin smo uporabili ekstrakcijo tekoče-tekoče, kateri je sledila določitev z GC-MS. Za vseh 16 spojin smo izračunali aktivne vonjalne vrednosti in njihove relativne prispevke. Med senzorično pomembnimi hlapnimi spojinami smo največje aktivne vonjalne vrednosti določili za etil oktanoat, etil heksanoat, izoamil acetat in etil butirat. Drugi raziskovalni članki so tudi pokazali, da so vsa preiskovana rdeča vina z izjemo enega vsebovala etil oktanoat, etil heksanoat, isoamil acetat in etil butirat nad pragom zaznave.