Evaluation of volatile and chemical profile of sherry-like white wine Vernaccia di Oristano from Sardinia by comprehensive targeted and untargeted approach

Abstract This study investigated the chemical–physical and volatile profile of sherry-like white wines with different aging time from three areas Sardinia. Proximate chemical composition, CIELab color coordinates absorbances at 280 420 nm were determined. Volatile compounds determined by solid-phase microextraction (SPME) followed gas chromatography coupled a mass spectrometer (GC/MS) using targeted untargeted approach. Significant correlations among age wine most physical parameters, such as alcohol content, total acidity, glycerol polyphenols observed. A values highest, expected, in oldest well an increase * low for L found during aging. Fifty-nine identified, which ethyl acetate, amyl/iso-amyl alcohol, octanoate, benzaldehyde, decanoate phenylethyl predominant. The approach was able to discriminate according their production area, within each group, year production.