Research Information System
Journal of Food Composition and Analysis, vol.142, 2025 (SCI-Expanded)
'Karasakiz' (Vitis vinifera L.), is a local red grape variety native to Çanakkale, a province of Türkiye. This work aimed to characterize the phenolic profile of Karasakiz red wines and mainly investigate the effects of soil characteristics on the phenolic composition, antioxidant capacity, and color properties of the red wines produced. The study was conducted on three vineyards located in three different regions of Çanakkale, each with distinct chemical properties and textural characteristics, over two consecutive vintages (2019 and 2020). The phenolic profiles and color properties of red wines varied depending on the year and region, and were strongly influenced by soil texture. A strong correlation (r = 0.897 and P < 0.0001) was found between the percentage of sand in the soil and the total monomeric anthocyanin content of the wines. Total monomeric anthocyanin contents of Karasakiz wines ranged from 15.76 mg/L to 68.87 mg/L, while total phenolics ranged from 1238 mg/L to 1950 mg/L, with variations observed depending on the region and year. Additionally, a high positive correlation was observed between potassium concentration and the concentrations of ferulic acid and catechin in the wines. This study reveals the characteristic properties and phenolic composition of Karasakiz wines from different sub-regions, highlighting significant correlations in terms of the soil-wine relationship.