The Douro Demarcated Region's winery industry produces million tonnes of by-products annually, making their reuse essential to minimize environmental impact. Grape stems, rich in bioactive compounds and nutrients, have demonstrated potential health benefits. This study analysed four red grape stems from the Douro region to assess their nutritional value and potential health benefit. Tryptophan, selenium, and ph...
Grape stems, or stalks, are lignocellulosic by-products removed during the destemming process to reduce astringency in wine production. These by-products are a notable source of minerals and polyphenolic compounds, such as phenolic acids, stilbenes, proanthocyanidins and catechin derivatives, flavonols, flavones, and anthocyanins. These bioactive compounds have been associated with several beneficial effects on...