Abstract
Nettle (Urtica dioica L.), tansy (Tanacetum vulgare L.), bladder campion (Silene vulgaris (Moench) Garcke, waterpepper (Polygonum hydropiper L.), common centaury (Centaurium erythraea Pers.) and rose hip fruit (Rosa canina L. cv. Plovdiv 1) were used for preparation of different water extracts (infusion, decoction and microwave extract) and ethanol (tincture) extracts. Carotenoids (lutein, lycopene and β-carotene), tocopherols (α-, γ- and δ-), organic acids (ascorbic, malic, fumaric and citric), five macro- and three microelements, sugars and uronic acids content in the obtained extracts were analyzed. Among the investigated plants, stinging nettle, bladder campion and rose hip fruit were evaluated as most potential with respect to bioactive compounds and microelements. The results showed that the selected six medicinal plants and their extracts can be presented as sources of dietary fibers and micronutrients, which may encourage further application as food supplements and beverages as well as to motivate plant use as a dietary alternative in different foods. The present study is a first detailed analysis with respect to sugar content of decoction, infusion and tincture of S. vulgaris.
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