Work

Phytochemical Screening and Antioxidant Activities of White and Red Wines from Different Varieties and Wine Regions in Romania

Year: 2025

Type: article

Abstract: The characteristics of the variety from which the wine is made, the geographical area of production, the year of production, and the technology of winemaking are the parameters with the most influence on the total content of polyphenols, the polyphenolic profile, and the antioxidant activity of wine. For this reason, a polyphenolic screen can help establish the authenticity of wines. For this study, 50 samples of white and red wine from different wine areas were collected. For these samples, a qualitative and quantitative analysis was carried out on the polyphenolic profile. The polyphenolic profiles of the studied wines were determined using UHPLC-ESI-MS/MS (mass spectrometry with tandem ionization with high-performance liquid chromatography). Among the non-flavonoid acids, gallic acids, p-coumarnic, and syringic acids in red wines showed higher concentrations in all samples, while resveratrol was present in concentrations from 0.605 to 12.38 mg/L in red wines, and white wines ranged from 0.07 to 0.35 mg/L. For flavonoids, -catechin (0.187 m/L-130.98 mg/L in red wines and 0.04-4.45 mg/L) and (-)-epi-catechin showed the highest concentrations, reaching up to 29.78 mg/L in red wines.

Source: Antioxidants

DOI: 10.3390/antiox14050564

Authors: Ovidiu Tița, Petronela Anca Onache, Elisabeta-Irina Geana, Corina Teodora Ciucure, Dorin Ioan Sumedrea, Alina Florea

Institutions: Lucian Blaga University of Sibiu, Institutul National de Cercetare Dezvoltare pentru Tehnologii Criogenice si Izotopice

Language: English

Topic: Phytochemicals and Antioxidant Activities

Subfield: Biochemistry

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Estimated APC paid: $3,499

Funder: Universitatea "Lucian Blaga" din Sibiu