| Title: | Insight into the Chemical Diversity of Late/Ice Harvest Gewurztraminer Wine |
| Author(s): | Jerkovic I; Marijanovic Z; Serreli G; Tuberoso CIG; |
| Address: | "Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, R. Boskovica 35, 21000, Split, Croatia. Department of Food Technology and Biotechnology, Faculty of Chemistry and Technology, University of Split, R. Boskovica 35, 21000, Split, Croatia. Department of Biomedical Sciences, Unit of Experimental Pathology, University of Cagliari, Cittadella Universitaria SS 554, 09042, Monserrato (CA), Italy. Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy" |
| ISSN/ISBN: | 1612-1880 (Electronic) 1612-1872 (Linking) |
| Abstract: | "Late harvest (LHW) and ice harvest (IHW) Gewurztraminer wine samples from Croatia (Ilok) were investigated. Their technological parameters, chromaticity coordinates, total phenols content, and antioxidant capacity were determined. 5-(Hydroxymethyl)furfural, xanthine, and trans-caftaric acid were analyzed in the samples by high performance liquid chromatography (HPLC-DAD). Headspace solid-phase microextraction (HS-SPME) followed by gas chromatography and mass spectrometry (GC/MS) analysis revealed isoamyl alcohol as predominant compound (21.25 - 60.30%). Diethyl succinate, 2-phenylethanol, and benzaldehyde were also abundant. Ethyl octanoate (1.48 - 5.70%) and ethyl caprate (0.48 - 4.83%) decreased significantly in LHW, being the lowest in IHW. Two solvents were applied for the samples extraction (solvent A - pentane/diethyl ether 1:2 (v/v) and solvent B - dichloromethane), and the extracts were analyzed by GC/MS. Ethyl hydrogen succinate (solvent A: 27.30 - 52.04%; solvent B: 28.04 - 46.69%) and diethyl succinate (solvent A: 5.21 - 18.2%; solvent B: 2.66 - 7.72%) were predominant in IHW and LHW. Aromatic alcohols were also found: 2-phenylethanol (solvent A: 7.07 - 21.09%; solvent B: 5.50 - 11.82%), 4-hydroxybenzyl alcohol (solvent A: 1.45 - 6.68%; solvent B: 2.47 - 12.16%) and benzyl alcohol (solvent A: 0.10 - 0.77%). The obtained results complement a previous study on IHW (Gewurztraminer) from Croatia providing new features and indicating great chemical diversity among the samples" |
| Keywords: | "Antioxidants/analysis Benzaldehydes/analysis Chromatography, High Pressure Liquid Croatia Gas Chromatography-Mass Spectrometry Pentanols/analysis Phenylethyl Alcohol/analysis Solid Phase Microextraction Solvents Succinates/analysis Volatile Organic Compou;" |
| Notes: | "MedlineJerkovic, Igor Marijanovic, Zvonimir Serreli, Gabriele Tuberoso, Carlo Ignazio Giovanni eng HRZZ-IP-11-2013-8547/Croatian Science Foundation/ Switzerland 2018/07/15 Chem Biodivers. 2018 Oct; 15(10):e1800254. doi: 10.1002/cbdv.201800254. Epub 2018 Sep 10" |
