Red Wine Extract | Polyphenols | Antioxidant | Vitis vinifera
Product Name: Red Wine Extract (Vitis vinifera)
Source: Grape skins and pomace of Vitis vinifera
Active Components: Polyphenols – anthocyanins, flavonoids, proanthocyanidins, resveratrol
Standardized Resveratrol Content: 3–10%
Appearance: Light brown to dark burgundy powder
Solubility: Freely soluble in water and water-alcohol mixtures
Stability: Sensitive to UV light and high temperature; store in a cool, dark place
1. Introduction
Red wine extract is obtained from grape skins and pomace (Vitis vinifera). It is a complex of polyphenols – anthocyanins, flavonoids, proanthocyanidins, and resveratrol – with potent antioxidant, anti-inflammatory, and cardioprotective effects.
Red wine polyphenols neutralize free radicals, improve microcirculation, and reduce the risk of atherosclerosis. Unlike roasted coffee beans or grape juice, the extract is standardized for key bioflavonoid content, making it convenient for use in capsules and tablets.
2. Structure and Production
Resveratrol: C₁₄H₁₂O₃ – two phenolic groups connected by an ethylene bridge (trans- and cis-isomers).
Other polyphenols: Anthocyanidins (e.g., malvidin-3-glucoside C₂₃H₂₅O₁₂), proanthocyanidins, catechins.
Production: Maceration or percolation of grape pomace in 30–70% ethanol, filtration, solvent removal, concentration, and spray or freeze drying.
3. Properties
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Appearance: Light brown to dark burgundy powder
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Solubility: Freely soluble in water and water-alcohol mixtures
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Standardized resveratrol content: 3–10%
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Stability: Sensitive to UV light and high temperature; store in a cool, dark place
4. Applications
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Nutraceuticals – cardioprotection and antioxidant defense
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Cosmetic serums and creams – anti-photoaging
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Functional beverages and dietary supplements – microcirculation support
5. Conclusion
Red wine extract is a complex natural antioxidant that helps protect blood vessels and tissues from oxidative stress. The recommended dose of resveratrol is 50–200 mg per day.
