Screening of common Plantago species in Hungary for bioactive molecules and antioxidant activity
Five species of Plantago genus, namely P. lanceolata, P. major, P. media, P. altissima and P. maritima were screened for iridoid content (CE-MEKC), total caffeoyl phenylethanoid glycoside (CPG) content and antioxidant activity (CUPRAC assay). The five species could be distinguished by TLC pattern analysis in a single run in a system commonly used for quality management of P. lanceolata leaves, as shown by cluster analysis of major bands; with the exception, that P. altissima and P. lanceolata did not show enough pattern difference to be fully separated. P. maritima was shown to have the highest antioxidant capacity (0.42 μmol ascorbic acid equivalent (AAE)/g DW), and the highest level of CPGs (4.29%). P. altissima was shown to be chemically indistinguishable from P. lanceolata with repsect to iridoid content (aucubin 0.55 ± 0.04%, 0.68 ± 0.23%, catalpol 0.66 ± 0.13% and 0.89 ± 0.22%, respectively), CPG content (2.40 ± 0.38% and 2.54 ± 0.56%, respectively) and antioxidant capacity (0.2206 ± 0.0290 and 0.2428 ± 0.0191 μmol AAEAC/g DW). The presented data show the potency of medicinal use of Hungarian wild populations of the studied five species, especially in the case of P. maritima, and that P. altissima can be a potential replacement of P. lanceolata in herbal mixtures.
KeywordsCaffeoyl phenylethanoid glycoside capillary electrophoresis CUPRAC antioxidant capacity iridoid glycosides Plantago L.
ascorbic acid equivalent antioxidant capacity
capillary electrophoresis - micellar electrokinetic chromatography
caffeoyl phenylethanoid glycoside
cupric reducing antioxidant capacity
Natural Product reagent A
thin layer chromatography
Trolox equivalent antioxidant capacity
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- 5.Beara, I. N. (2010) Phytochemical Screening and Evaluation of Antioxidant and Anti-inflammatory Potential of Secondary Metabolites of Plantago L. Species. PhD thesis, Novi Sad, University of Novi Sad, Serbia.Google Scholar
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