Technological Aspects and Potential Cutaneous Application of Wine Industry By-Products

Did you know that up to 20% of the grape biomass used in winemaking ends up as by-products? These discarded seeds, skins, and stems are treasure troves of polyphenols—powerful antioxidants that could revolutionize skincare.

The winemaking industry discards up to a fifth of its grape biomass as seeds, skins, pulp, and stems. But these by-products are far from worthless—they're packed with polyphenols, natural compounds with antioxidant prowess that could be harnessed for food, medicine, and cosmetics.

Traditional extraction methods rely on harsh solvents that harm both our health and the planet. That's why researchers are racing to develop greener alternatives. Modern technologies can now recover these valuable antioxidants without hazardous chemicals, aligning with global sustainability goals.

Nanotechnology is a game-changer here. By using nanocarriers, scientists can boost the stability and bioavailability of these polyphenols, making them more effective. This has opened doors to innovative skincare products, including sunscreens with enhanced antioxidant protection.

This review highlights various extraction and encapsulation techniques for these bioactive compounds from Vitis vinifera L. It also explores their potential in creating value-added skin protection products, all within a sustainable circular economy framework.

Key Points

• 20% of grape biomass is by-products rich in polyphenols.
• Green extraction avoids hazardous solvents, ensuring safety.
• Nanotechnology boosts stability and skin protection applications.