Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XIX
Written by Ivan IVANOV, Nadezhda PETKOVA, Panteley DENEV, Atanas PAVLOV
Fragaria vesca L. (wild strawberry) belongs to the Rosaceae family. The leaves and roots from wild strawberry are herbal materials applied in traditional medicine. Fragaria vesca are rich source of biologically active substances like tannins, procyanidins, anthocyanidins, flavonoids and phenolic acids. The aim of this study was to compare the value of phytochemical compounds and antioxidant activities in infusion and decoction obtained from the wild strawberry leaves. The extracts were analyzed regarding their secondary metabolite content (total polyphenols, total flavonoids and total proanthocyanidins) and antioxidant activities (DPPH and CuPRAC methods). The analysis of decoction extracts from the leaves harvested in blooming period revealed the highest level of total polyphenols (46.1 mg GAE/g DW), total flavonoids (4.7 mg QE/ g DW), total proantocyanidines (22.3 mg/ g DW) and antioxidant activities – radical scavenging activity (DPPH – 325.0 mM TE/ g DW) and metal reducing ability (CuPRAC – 1257.9 mM TE/ g DW). The results showed that the water extracts from leaves of Fragaria vesca are appropriate additives for preparation of functional foods and natural cosmetic products with improved biological activity.
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