ArticleAntioxidants (Basel, Switzerland)2025
Transylvanian Grape Pomaces as Sustainable Sources of Antioxidant Phenolics and Fatty Acids-A Study of White and Red Cultivars.
Article in Antioxidants (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Integrated Evaluation of Agronomic and Phytochemical Traits in Red Clover (Plants (Basel, Switzerland) · 2026Article
- Grape Pomace as a Platform for Secondary Metabolite Recovery: Mechanistic Insights into Bioactivity, Processing, and Functional Valorization.Foods (Basel, Switzerland) · 2026Review
- Red and White Grape Pomace Possess Cardioprotective Effects by Modulating Inflammation and Oxidative Stress in Experimental Ischemic Heart Disease.Molecules (Basel, Switzerland) · 2026Article
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Authors and funding
13 authors.
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Abstract
Grape pomace (GP), a significant by-product of winemaking, is gaining increasing recognition for its potential as a source of bioactive compounds with antioxidant and cardioprotective properties. This study aimed to characterize the polyphenolic profile, fatty acid composition, and antioxidant activity of 17 GP samples from Transylvanian cultivars. Polyphenolic content was determined using the Folin-Ciocalteu method and high-performance liquid chromatography coupled with diode array detection and electrospray ionization mass spectrometry (HPLC-DAD-ESI MS) analysis. Fatty acid composition was analyzed using gas chromatography with flame ionization detection (GC-FID). Antioxidant capacity was assessed using five methods, which included the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, 2,2'-azino-bis (3-ethylbenzothialzoline-6-sulfonic acid) (ABTS) radical scavenging, ferric-reducing antioxidant power (FRAP), cupric ion reducing antioxidant capacity (CUPRAC), and reducing power (RP) assays. Additionally, all extracts were analyzed by Fourier transform infrared (FTIR) spectroscopy to identify the presence of functional groups and chemical bonds associated with bioactive compounds. The results showed that Neuburger (NE), Radames (RA), and Regent (RE) cultivars had the highest phenolic concentrations, particularly of catechin, epicatechin, and procyanidin dimers. NE and Feteascǎ Regalǎ (FR) exhibited the greatest radical scavenging and electron transfer activities across multiple antioxidant assays. Rose Blaj (RB) and Astra (AS) displayed the most favorable fatty acid profiles, with high unsaturated-to-saturated fatty acid (UFA/SFA) and hypocholesterolemic-to-hypercholesterolemic fatty acid (H/H) ratios, as well as low atherogenicity (AI) and thrombogenicity (TI) indices, suggesting cardioprotective potential. Additionally, RB and NE cultivars also demonstrated a strong chelation of Cu
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