Wydział Chemii

Henryk H. Jeleń

Małgorzata A. Majcher

Mariusz Dziadas

Renata Zawirska-Wojtasiak

Katarzyna Czaczyk

Erwin Wąsowicz

2011

Journal of Chromatography A

1218

7566-7573

10.1016/j.chroma.2011.07.023

Naukowa

Angielski

Artykuł

Jutrzenka is a sweet liquer wine produced in Poland from the grape variety of the same name, developed in Poland to withstand the harsh climate of winery regions. Jutrzenka wine has a characteristic aroma with strong fruity and flowery notes, which make it unique among other liquer wines as demonstrated in sensory profile analysis. The work was aimed at characterization of volatile compounds in this wine, with the emphasis on characterization of compounds responsible for its unique aroma. Gas chromatography-olfactometry (GC-O) was applied to identify the key odorants using aroma extract dilution analysis (AEDA) approach. To facilitate free and bound terpenes and C(13)-norisoprenoids identification solid phase extraction (SPE) was used followed by GC/MS. Among identified key odorants β-damascenone was the compound having the highest FD (4096), followed by isoamyl alcohol, 4-mercapto-4-methyl-2-pentanone (FD=2048), methional, linalool, ethyl decanoate (FD=1024) and ethyl hexanoate, furaneol (FD=512). Other significant compounds were ethyl 2-methyl propanoate, ethyl 2-methylbutanoate and phenyl ethyl alcohol. Determination of odor activity values (OAV) showed the highest values for β-damascenone (566), 4-mercapto-4-methyl-2-pentanone (288) ethyl hexanoate (32) and linalool (7). Jutrzenka exhibited also a rich profile of free, and to lesser extent bound terpenes.

Wine, Jutrzenka grapes, Liquer wine, GC–O, GC × GC–ToF-MS, Key odorants

http://dx.doi.org/10.1016/j.chroma.2011.07.023

http://www.elsevier.com