AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Authors: ANCA D. FARCAȘ, CEZARA ZĂGREAN-TUZA, LAURIAN VLASE, ANA-MARIA GHELDIU, MARCEL PÂRVU, AUGUSTIN C. MOȚ.
DOI: 10.24193/subbchem.2020.2.17
Published Online: 2020-06-30
Published Print: 2020-06-30
pp. 209-220
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ABSTRACT: In this study we compare the phytochemical composition and antioxidant properties of four Plantago species (P. cornuti, P. lanceolata, P. major and P. media), in terms of radical scavenging ability and their reductive properties in corroboration with EPR spectroscopy profiling. We found that Plantago extracts possess very low prooxidant activity while being efficient radical scavengers and electron donors. P. media showed the strongest antioxidant activity from the four species investigated. The relative composition derived from the EPR spectra of the studied extracts was compared to the phytochemical composition determined by HPLC-MS analysis. Downhill Simplex algorithm simulation of EPR experimental signals revealed that all four Plantago extracts display luteolin and chlorogenic acid profiles, as well as quercetin glycosides, especially rutin. EPR spectroscopy appears to be a useful tool for discrimination of radical-based complex mixture, rendering it as an alternative method for predicting chemical behaviour, regardless of synergistic or antagonistic effects.
Key words: Plantago, Antioxidants, EPR fingerprinting
