Induction of stilbenes in grapes by UV-C: Comparison of different subspecies of Vitis

Effects of Ultraviolet C Irradiation on Stilbene Biosynthesis in Vitis vinifera L. cv. Cabernet Sauvignon Berry Skins and Calli

“…1D) increased to a maximum of 71.06 ± 1.87 μg/g FW at 100 DAF and declined at 110 DAF. The stilbene content in grape berries depends on the grape cultivar (Douillet-Breuil et al, 1999;Li et al, 2006;Guerrero et al, 2010), and stilbene biosynthesis is related to the stage of development (Versari et al 2001;Fornara et al, 2008). Our results show that the stilbene content in berry skins increased from véraison to the ripening stage, in agreement with the findings of Gatto et al (2008) and Dai et al (2012).…”

The stilbene profile in edible berries

“…Cabra was the terroir where the varieties achieved the highest induction capacity (2.02 lg/g per day after UV-C irradiation), especially the Syrah variety. This is in agreement with previous research in which Syrah increased its stilbene content more than the other thirteen varieties studied (Guerrero et al 2010a). However, the highest increase in the resveratrol and piceatannol contents in the Syrah variety was from the Jerez terroir, which amounted to 2.7 and 6.1 times, respectively, in comparison to those in the untreated berries.…”

“…The maximum E-resveratrol concentration detected in grape after UV-C treatment depends on its initial concentration, which correlates with the developmental stage of berries (Guerrero et al 2010a, b). In another work (Table 2, no.…”

“…Postharvest treatment of grape varieties with UV-C resulted in higher concentrations of stilbenes, such as E-resveratrol, piceatannol, viniferins and pterostilbene (Table 2, no. 4, 5) (Adrian et al 2000;Guerrero et al 2010a). Differences in concentration after UV-C irradiation depended on the variety and campaign, but not on the grape subspecies.…”

“…Many analytical methods with various detection techniques are reported for the separation and identification of individual stilbenes in edible berries, such as liquid chromatography-tandem mass spectrometry (LC-MS/MS) (Vrhovsek et al 2012), liquid chromatography-mass spectrometry (LC-MS) (Može et al 2011), liquid chromatography with dual detection by a photodiode array and quadrupole time-of-flight mass spectrometry (LC-PDA-QTOF/MS) (Samoticha et al 2017), high-pressure liquid chromatography-mass spectrometry (HPLC-MS) (Bavaresco et al 2002;Jiang et al 2012;Kiselev et al 2017), high-pressure liquid chromatography with diode array detection (HPLC-DAD) (Bavaresco et al 2002;Sun et al 2006;Vilanova et al 2015;Guerrero et al 2010aGuerrero et al , 2016, high-pressure liquid chromatography with UV detection (HPLC-UV) (Vincenzi et al 2013;Kawakami et al 2014;He et al 2009a), ultra-high-pressure liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC/QTOF/MS) (Flamini et al 2016;De Rosso et al 2016), ultra-performance liquid chromatography with dual detection by a photodiode array and fluorescence detectors (UPLC/DAD/FL) (Samoticha et al 2017), ultra-performance liquid chromatography with dual detection by a diode array and tandem quadrupole mass spectrometry (UPLC/ DAD/TQD) (Guerrero et al 2010a), gas chromatography-mass spectrometry (GC-MS) (Ragab et al 2006;Viñas et al 2009Viñas et al , 2011, gas chromatographymass spectrometry with selected ion monitoring (GC-MS SIM) (Rimando and Cody 2005), gas-liquid chromatography with flame ionization detection (GLC-FID) (Moriartry et al 2001), capillary electrophoresis (CE) (Ehala et al 2005) and high-speed counter-current chromatography (HSCC) (He et al 2009b). Various methods are used for analyses of stilbenes contents in the edible berries are different which could also contribute to the observed variability in the published results.…”