4.7 Article

Enriched Red Wine: Phenolic Profile, Sensory Evaluation and In Vitro Bioaccessibility of Phenolic Compounds

Journal

FOODS
Volume 12, Issue 6, Pages -

Publisher

MDPI
DOI: 10.3390/foods12061194

Keywords

red wine; phenolic compounds; bioaccessibility; sensory profile; phenolic profile

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The phenolic content in red wines, which plays a significant role in their health benefits, is influenced by various factors. Enriching red wines has been suggested as a way to increase phenolic content, but it must strike a balance between phenolic content and sensory characteristics. In this study, a Merlot red wine was enriched with a phenolic extract from Cabernet Sauvignon grape pomace, resulting in an increase in flavonols and procyanidins. The enrichment affected the perceived astringency and sweetness. This study offers an alternative to increase phenolic content in wines without altering other sensory characteristics, potentially benefiting consumer health.
The beneficial health effect of red wine depends on its phenolic content and the phenolic content in red wines is affected by ecological, agricultural, and enological practices. Enriched wines have been proposed as an alternative to increase the phenolic content in wines. Nevertheless, phenolic compounds are related to the sensory characteristics of red wines, so enrichment of red wines requires a balance between phenolic content and sensory characteristics. In the present study, a Merlot red wine was enriched with a phenolic extract obtained from Cabernet Sauvignon grape pomace. Two levels of enrichment were evaluated: 4 and 8 g/L of total phenolic content (gallic acid equivalents, GAE). Wines were evaluated by a trained panel to determine their sensory profile (olfactive, visual, taste, and mouthfeel phases). The bioaccessibility of phenolic compounds from enriched red wines was evaluated using an in vitro digestive model and phenolic compounds were quantified by High Performance Liquid Chromatography coupled to tandem mass spectrometry (HPLC-MS/MS). Enrichment increased mainly flavonols and procyanidins. Such an increase impacted astringency and sweetness perceived by judges. This study proposes an alternative to increase the phenolic content in wines without modifying other main sensory characteristics and offers a potential beneficial effect on the health of consumers.

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