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Abstract(s)
Fragaria vesca L. (Rosaceae), wild strawberry, is widely spread across the Iberian Peninsula
and can be also found in Korea, Japan, North America and Canada. Usually it
grows in forests, slopes and roadsides (1). The leaves are traditionally used as tonic,
stimulant and diuretic, described are also antiseptic, anti-dysenteric and detoxifying
properties; the decoction is also used for hypertension [2, 3). The bioactive properties
of Fragaria have been associated with the presence of ellagic acid, procyanidins and
flavonols, as previously described for leaves of F. chiloensis spp. chiloensis [4]. As far as
known, there are no reports on the phenolic profile of vegetative parts of F. vesca. Therefore
the phenolic profile and the antioxidant potential were studied with hydro-methanolic
and aqueous extracts of vegetative parts of cultivated and wild grown F. vesca. Both
samples contained ellagic acid derivatives and sanguiin H-10 isomer as the major compound,
followed by a procyanidin trimer and quercetin rhamnoside in cultivated and wild
grown plant material, respectively. The cultivated plant material showed higher DDPH
scavenging activity (EC50= 39.33 J.lg/ml) and had more total phenolic compounds (TPC)
(58.73 mg/g) than the wild grown sample. The antioxidant capacity of the cultivated plant
material (especially reducing power and [3- carotene bleaching inhibition) showed high
correlation with the content of total ellagic acid derivatives (TED), total flavonols (TF),
total flavan 3-ol (TF30) and TPC. In contrast, wild grown sample infusions showed higher
reducing power, [3-carotene bleaching inhibition and TBARS inhibition (EC50= 62.23,
12.34 and 3.12 J..lg/ml, respectively}; reducing power showed high correlation with TF
and TF30, and TBARS assay with TED and TF. Data obtained show a great antioxidant
potential of vegetative parts from wild growing strawberry, which might be a new source
of bioactive compounds for food and pharmaceutical applications.
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Citation
Dias, Maria Inês; Barros, Lillian; Oliveira, M.B.P.P.; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R. (2014). Individual phenolic profile and antioxidant activity of vegetative parts of Fragaria vesca L. In 62th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research - GA2014. Guimarães