Authenticity markers in Aglianico, Uva di Troia, Negroamaro and Primitivo grapes.
Aglianico, Negroamaro, Uva di Troia, and Primitivo, non-aromatic red grapes of southern Italy, were analyzed with respect to berry varietal markers, namely anthocyanins, flavonols, hydroxycinnamoyl tartaric acids (HPLC-DAD) and glycosidic aroma precursors (GC-MS) together with shikimic acid (HPLC-UV). In this study, we confirmed that the relative amount of grape glycosidic precursors from various terpene families was a helpful varietal discriminating factor. An additional decisive contribution to varietal differentiation was also provided by shikimic acid, acetylated forms of anthocyanins, cyanidin-3-O-glucoside, trans-caftaric and trans-coutaric acids. A three-dimensional model of principal component analysis was adopted to evidence the study results.
Tamborra
Pasquale
P
C.R.A-UTV, Agricoltural Research Council, Via Vittorio Veneto n. 26, 70051 Barletta, Italy.
Esti
Marco
M
D000872:Anthocyanins / Q000032:analysis / Q000737:chemistry; D015415:Biomarkers / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D044948:Flavonols / Q000032:analysis / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006027:Glycosides / Q000032:analysis / Q000737:chemistry; D012765:Shikimic Acid / Q000032:analysis / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D013644:Tartrates / Q000032:analysis / Q000737:chemistry; D027843:Vitis / Q000737:chemistry*
D000872:Anthocyanins; D015415:Biomarkers; D044948:Flavonols; D006027:Glycosides; D013644:Tartrates; D012765:Shikimic Acid; C029768:tartaric acid