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RESEARCH PRODUCT

Phytochemical profiles, phototoxic and antioxidant properties of eleven Hypericum species - A comparative study

Alessandra CarrubbaSilvia LazzaraLaura SiracusaMariateresa CristaniEdoardo NapoliFrancesco CiminoGiuseppe RubertoAntonella SaijaAntonio Speciale

subject

0106 biological sciencesDPPHHyperforinAntioxidants Hyperforin Hypericin Hypericum species (Clusiaceae Lindl.) Phototoxicity; PolyphenolsPhytochemicalsHypericinFlowersPlant ScienceHorticultureHypericaceae01 natural sciencesBiochemistryAntioxidantsMass SpectrometryPhototoxicityMicechemistry.chemical_compoundPicratesSpecies SpecificityHypericum species (Clusiaceae Lindl.) Phototoxicity Polyphenols Hypericin Hyperforin AntioxidantsAnimalsHypericum species (Clusiaceae Lindl.)Molecular BiologyChromatography High Pressure LiquidbiologyTraditional medicine010405 organic chemistryChemistryBiphenyl CompoundsPolyphenolsHypericum perforatumGeneral MedicineFibroblastsbiology.organism_classificationSettore AGR/02 - Agronomia E Coltivazioni Erbacee0104 chemical sciencesHypericinHyperforinPhotochemotherapyPhytochemicalPolyphenolNIH 3T3 CellsAntioxidantReactive Oxygen SpeciesHypericumHypericumDermatitis Phototoxic010606 plant biology & botany

description

Hypericum is one out of the nine genera belonging to the botanical family Clusiaceae Lindl (syn. Hypericaceae Juss.; APG III, 2009). The genus contains 484 species spread worldwide, one of which, Hypericum perforatum, is largely used in folk medicine. The aim of this study was to evaluate the chemical composition, along with the antioxidant and phototoxic activity, of 11 Hypericum species grown in Sicily (H. perforatum L., H. aegypticum L., H. androsaemum L., H. calycinum L., H. hircinum L., H. hirsutum L., H. montanum L., H. patulum Thunb., H. perfoliatum L., H. pubescens Boiss., H. tetrapterum Fr.). Samples of flowering tops collected from these Hypericum species were extracted and analysed by high performance liquid chromatography with diode-array detection and mass spectrometry (HPLC-DAD-MS) to determine their content of main polyphenols, acylphloroglucinols, and naphthodianthrones. The extracts were also subjected to a photocytotoxic assay using murine fibroblast (NIH/3T3), and their antioxidant activity evaluated by means of Folin-Ciocalteau, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, and oxygen radical antioxidant capacity assays. Phytochemical analysis allowed us to identify and quantify 20 metabolites, each of them possessing a well-known biological activity. Furthermore, all examined species showed a good cytotoxic and antioxidant/radical scavenging activity. These results indicate that in addition to the well-known H. perforatum, at least other three species (H. tetrapterum, H. pubescens, and H. montanum) represent potential sources of biologically active compounds, and at least other two species (H. perfoliatum and H. tetrapterum), due to their phototoxicity are candidates for application in photodynamic therapy.

yearjournalcountryeditionlanguage
2018-01-01
10.1016/j.phytochem.2018.05.003http://hdl.handle.net/11570/3126787