Comparing phenolic composition of Cabernet Gernischet wines between rain-shelter cultivation and open-field cultivation

Abstract

The phenolic compounds of Vitis vinifera cv. Cabernet Gernischet wine in 2010 and 2011 vintage from rain-shelter cultivation and open-field cultivation were detected and compared by high performance liquid chromatography coupled with diode array detector and electrospray ionisation mass spectrometry. The results showed that rain-shelter cultivation increased the total anthocyanin and non-anthocyanin phenolic compound concentration. For the compositions, ratios of peonidin-derivative and malvidin-derivative pigments were similar in the two vintages, rain-shelter cultivation increased the proportion of these derivatives; ratios of delphinidin-derivative and petunidin-derivative pigments were different in the two vintages. In the wine of rain-shelter cultivation, the ratio of flavan-3-ol and hydroxybenzoic acids was increased, the ratio of flavonol was decreased and the composition of other compounds varied between the two vintages. To most of the phenolic compounds identified, their content in wine under rain-shelter cultivation was higher compared to those under open-field cultivation.

Modification of wine phenolic profiles by gibberellic acid application in ‘Cabernet Gernischt’ grapevines before anthesis

“…22,37 Individual anthocyanin phenolic compounds in CG wines In this study, 13 monomeric anthocyanins, mainly cyanidin, delphinidin, petunidin, peonidin, malvidin, and their derivatives, were quantified in CG wines (Table 3). Malvidin and its derivatives showed the highest concentrations among all anthocyanins, which agreed with a study conducted by He et al 21 In both years, application of 5-15 mg L −1 GA 3 increased the contents of malvidin, malvidin-3,5-diglucoside, and malvidin-3-glucoside in CG wines. Moreover, 10 mg L −1 GA 3 treatment significantly increased the contents of malvidin-3,5-diglucoside, and malvidin-3-glucoside in CG wines.…”

“…Flavan‐3‐ols are characterized by their astringency and bitterness and are the dominant phenolic compounds in CG wines 21,38 . GA 3 treatments had no significant influence on catechin and epicatechin concentrations in 2019, but concentrations >5 mg L −1 increased them significantly in 2020.…”

“…During harvest, grape bunches from different treatments were handpicked, and wine was produced as described by He et al 21 . For each treatment, three alcohol fermentation replicates were performed.…”

“…During harvest, grape bunches from different treatments were handpicked, and wine was produced as described by He et al 21 For each treatment, three alcohol fermentation replicates were performed. Grapes (8 kg) were destemmed and crushed manually and placed into a 10 L glass bottle with 60 mg L −1 of sulfur dioxide (potassium metabisulfite).…”

Comparative transcriptome profiling analysis provides insight into the mechanisms for sugar change in Chinese jujube (Ziziphus jujuba Mill.) under rain‐proof cultivation

“…RP cultivation is a simple form of facility agriculture, and has gradually become one of the most popular cultivation techniques for some fruit trees (Li et al., 2009). RP, cultivation can increase the fruit yield (Duan et al., 2019; Xu et al., 2017), reduce disease (Meng et al., 2012), and improve fruit quality (Gao et al., 2016; Meng et al., 2017; Yan‐Nan et al., 2016). The sugar contents of most fruit species grown under RP cultivation are significantly higher than those of fruits grown under OF cultivation (Huang et al., 2009; Tian et al., 2019).…”