Comparison on Phenolic Compounds and Antioxidant Properties of Cabernet Sauvignon and Merlot Wines from Four Wine Grape-Growing Regions in China

Abstract

The antioxidant activities in the Cabernet Sauvignon and Merlot wines from four wine grape-growing regions in China were measured by different analytical assays: 2,2-diphenyl-1-picrylhydrazyl (DPPH·), cupric reducing antioxidant capacity (CUPRAC), superoxide radical-scavenging activity (SRSA) and the contents of total phenols, total flavonoids, total flavanols and total anthocyanins were determined. The results showed that the contents of phenolic compounds and the levels of antioxidant activity in the wine samples greatly varied with cultivar and environmental factors of vine growth. The contents of phenolic compounds and antioxidant activities in Cabernet Sauvignon and Merlot wines from the Yuquanying region of Ningxia were significantly higher than other three regions, followed by the wines from Shacheng region of Hebei, and these parameters were the lowest in Cabernet Sauvignon and Merlot wines from the Changli regions of Hebei and Xiangning region of Shanxi. Taken together, a close relationship between phenolic subclasses and antioxidant activity was observed for the wine samples. Moreover, there were significant discrepancies in the individual phenolic composition and content of four regional Cabernet Sauvignon and Merlot wines, among which the individual phenolic compounds (catechin, epicatechin, cinnamic acid, quercetin-3-O-glucuronide, quercetin-3-O-glucoside, laricitrin-3-O-glucoside and isorhamnetin-3-O-glucoside) revealed a significant correlation (p < 0.05) with the antioxidant capacity in present study, especially for catechin and epicatechin.

Phenolic Characteristics and Antioxidant Activity of Merlot and Cabernet Sauvignon Wines Increase with Vineyard Altitude in a High-altitude Region

“…The anthocyanins in the wine were extracted from grape berries during fermentation and maceration. Varietal genetic characteristics and the extended harvest time of CS grapes might be beneficial to anthocyanin accumulation and contribute to their high content in wine under the same maceration and fermentation conditions (Jiang & Zhang, 2012). Furthermore, the average temperature difference between daytime and night time was found to increase from 2 282 m to 2 608 m in the present study ( Table 2).…”

Influence of the growing region, quality classification and harvest year on the ORAC (Oxygen Radical Absorbance Capacity) index of Chilean Cabernet Sauvignon red wines

“…Additionally, this region exhibits heavy soils that are rich in nutrients and able to store water. These findings are in accordance with studies showing a remarkable dependence of the polyphenolic composition of wines on their geographical origin (Woraratphoka et al, 2007;Jiang and Zhang, 2012). In the present work, the particular increase in the antioxidant content of wines from grapes grown in the IV region can be explained by the climatic characteristics of this region, which include dry weather and a temperature difference between day and night of nearly 20 °C.…”

“…Moreover, polyphenols exert favorable effects on human health, which are at least partly associated with , and Eduardo Lissi their antioxidant activity (Jaromír et al, 2009;Jiang and Zhang, 2012). The total phenolic content of red wines and their antioxidant ability depend on factors such as the grape variety, quality classification, vineyard location, cultivation system, climate, soil type, harvest time, winemaking procedures, and storage conditions (Di Majo et al, 2008;Jantschi et al, 2013;Tenore et al, 2013;Lissi et al, 2014;Xiang et al, 2014).…”

Evaluation of secondary metabolites, antioxidant activity, and color parameters of Nepali wines

“…Screening of various parameters in wines and other food products is on rise in recent years because of their possible role in better health, nutritional value, and disease prevention. There are several reports on the quality of commercially produced wines from various countries such as Italy (Cassino et al., 2016; Garaguso & Nardini, 2015), China (Jiang & Zhang, 2012; Li, Wang, Li, Li, & Wang, 2009), Australia (Yoo, Prenzler, Saliba, & Ryan, 2011), Brazil (Gris et al., 2013), Czech Republic (Stratil et al., 2008), Portugal (Stratil et al., 2008), Romania (Hosu, Cristea, & Cimpoiu, 2014), and Spain (Gómez‐Plaza, Olmos, & Bautista‐Ortín, 2016). Screening of the parameters such as total phenols on commercial wine also helps to assess the quality wines and allocate them into different grades and price.…”