Antioxidant extraction and bioactivity preservation from winery by-products by Natural Deep Eutectic Solvents (NaDES)
In recent times, the feasibility of sourcing the bioactivity and health-promoting activity of anthocyanins, flavanols, stilbenes and phenolic acids from viticulture and winery by-products was explored. In particular, pomace, wine lees, and pruning stalks attracted a great deal of interest among scientists, technologists, and businesses. Traditional solid-liquid extraction methods employ hazardous solvents, such as hydrocarbons, alcohols and chloro-alkanes.