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Mitodepressive, antioxidant, antifungal and anti-inflammatory effects of wild-growing Romanian native Arctium lappa L. (Asteraceae) and Veronica persica Poiret (Plantaginaceae)

Radu Claudiu Fierascu, Milen I. Georgiev, Irina Fierascu, Camelia Ungureanu, Sorin Marius Avramescu, Alina Ortan, Mihaela Ioana Georgescu, Anca Nicoleta Sutan, Anca Zanfirescu, Cristina Elena Dinu-Pirvu, Bruno Stefan Velescu, Valentina Anuta
Food and chemical toxicology 2018 v.111 pp. 44-52
2,2-diphenyl-1-picrylhydrazyl, Allium cepa, Arctium lappa, Aspergillus niger, Penicillium, Veronica persica, aerial parts, anti-inflammatory activity, antioxidant activity, antioxidants, ascorbic acid, bioactive compounds, chromosome aberrations, fungi, high performance liquid chromatography, inflammation, meristems, models, roots, toxicology
The present study aims to evaluate the potential uses of hydroalcoholic extracts obtained from Romanian native wild-growing plants. The hydroalcoholic extracts were obtained from the burdock roots and respectively the aerial parts of birdeye speedwell. The extracts were characterised by HPLC (quantifying 13 compounds in the V. persica extract, 6 compounds in the A. lappa extract and confirming the presence of arctiin and arctigenin in the burdock extract). The antioxidant potential of the crude extracts was evaluated using two methods: the DPPH assay (79.91% for speedwell extract, 76.23% for burdock extract) and the phosphomolybdate method (296.5 mg/g ascorbic acid equivalents for burdock, 324.4 mg/g for speedwell). The crude extracts were found to be active against both fungal lines used (Aspergillus niger and Penicillium hirsutum), inhibition zones - 17.1 mm and 13.1 mm against P. hirsutum, respectively ca. 22 mm for both extracts against A. niger. The cytogenetic effects (assessed using the Allium cepa assay) revealed a series of chromosomal aberrations and nuclear aberrations induced in the meristematic root cells. The anti-inflammatory effect, estimated in two inflammation experimental models, showed a significant effect, especially for the speedwell extract. The results recommend the evaluated extracts as promising sources of biologically-active compounds.