Affiliation:
1. All-Russian National Research Institute of Viticulture and Winemaking “Magarach” of the Russian Academy of Sciences
Abstract
Climate change affects the metabolism of grape plants, quality and biological value of wine, necessitating the search for new territories to establish vineyards. The purpose of research is to assess the impact of agro-ecological conditions (2016–2021, Crimea) on the formation of a complex of phenolic antioxidants and quality of ‘Cabernet Sauvignon’ grapes and wine. The methods used are: geoinformational (SRTM-3, ASTER GDEM, Worldclim ver. 2.0) and mathematical modeling, high performance liquid chromatography method (HPLC), enochemistry appropriate practices and statistical analysis. Following differences (Wilks L. ≤ 0.27; α < 0.00001) are determined in territories of grape growing in terms of heat supply – Uglovoe < Vilino < Yalta < Privetnoe, Solnechnaya Dolina < Morskoe; in terms of moisture supply – Solnechnaya Dolina, Morskoe, Privetnoe < Vilino, Uglovoe < Yalta. Increase in heat supply of territories was accompanied by the accumulation of sugars in grapes; easily extracted anthocyanins, flavonols, (–)-epicatechin in berry seeds and skins, and pH increasing, on the one hand; and on the other hand, intensification of transformation and polymerization processes in phenolic components during grape ripening and processing, leading to increase in the content of procyanidins (B2, B4), the proportion of malvidin, and decrease in the proportion of cyanidin and petunidin in berries; decrease in the concentration of monoand dimeric phenolic antioxidants, increase in the hints of spices and milk cream in aroma, as well as development of a velvety-tannic flavor in wine. Increase in the moisture supply of territories holds the process of accumulation and transformation of phenolic antioxidants in berries. Wine from grapes of Uglovoe, Vilino and Yalta vineyards contained a biologically significant amount of hydroxycinnamic acids; from Privetnoe, Yalta and Vilino vineyards – flavan-3-ols and anthocyanins. Wine from Morskoe and Solnechnaya Dolina vineyards contained an average of 1.6 times less phenolic antioxidants. The research results are significant for an object-oriented assessment of climatic conditions of grape growing territories.
Publisher
Publishing House Belorusskaya Nauka
Reference22 articles.
1. Jiang B., Zhang Z.-W. Comparison on phenolic compounds and antioxidant properties of Cabernet Sauvignon and Merlot wines from four wine grape-growing regions in China. Molecules, 2012, vol. 17, no. 8, pp. 8804–8821. https://doi.org/10.3390/molecules17088804
2. Kubyshkin A., Ogai Y., Fomochkina I., Zaitsev G., Shramko Y. Polyphenols of red grape wines and alcohol-free food concentrates in rehabilitation technologies. Polyphenols. London, 2018, pp. 99–120. https://doi.org/10.5772/intechopen.76655
3. Ostroukhova E. V., Peskova I. V., Vyugina M. A. Comparative analysis of grape cultivars as sources of biologically active compounds: stilbenoids and flavonols. Dostizheniya nauki i tekhniki APK= Achievements of Science and Technology in AIC, 2019, vol. 33, no. 1, pp. 45–49 (in Russian). https://doi.org/10.24411/0235-2451-2019-10111
4. Šikuten I., Štambuk P., Andabaka Ž., Tomaz I., Marković Z., Stupić D., Maletić E., Kontić J. K., Preiner D. Grapevine as a rich source of polyphenolic compounds. Molecules, 2020, vol. 25, no. 23, art. 5604. https://doi.org/10.3390/molecules25235604
5. Tena N., Martín J., Asuero A. G. State of the art of anthocyanins: antioxidant activity, sources, bioavailability, and therapeutic effect in human health. Antioxidants, 2020, vol. 9, no. 5, art. 451. https://doi.org/10.3390/antiox9050451