The content of antioxidants in structural elements (pulp, skin, seeds) of the berry and grape cluster stems of table grape varieties Augustine, Cardinal, Moldova, table-technical varieties Isabella, White Muscat, and technical varieties Bianca, Cabernet Sauvignon, Rkatsiteli, Saperavi, as well as in juice and wines produced from them, was investigated. The “TSVET YAUZA 01-AA” device (RF) was used. Results were obtained from the signal of an amperometric detector. The highest total antioxidant content (TAC) was determined: in the pulp of Saperavi berries (5.29 mg/dm?), in the skin of Rkatsiteli (1.89 mg/dm?), in the seeds of the Augustine variety (10.08 mg/dm?), and in the stems of Bianca (5.41 mg/dm?). Analyses showed that TAC depends on the varietal characteristics of the grapes and the technological techniques used in wine production. The obtained information supplements the biochemical and technological characteristics of the studied varieties, enabling the targeted selection of grapes with significant TAC indicators, suitable for successful application in ampelotherapy and the production of high-quality wines.
Pages: 27 - 32
Date: 30.08.2025