title: Polar Constituents, Essential Oil and Antioxidant Activity of Marsh Woundwort (Stachys palustris L.).
abstract: Stachys palustris, well-known as marsh woundwort, is a perennial herb growing in wet environments of Europe. Its tubers, leaves and seeds are eaten raw or cooked. Alike other Stachys species, the plant is also used as a traditional remedy. Despite S. palustris has been consumed for centuries, little is known about its chemical constituents. In this work the main secondary metabolites of S. palustris from Hungary and France have been analysed. From the plant ethanolic extracts, ethanoid glucosides, isoscutellarein derivatives, caffeoyl-quinic acids and iridoids have been isolated and structurally characterized by NMR. The essential oils were analysed by GC/MS and showed (E)-phytol, fatty acids and carbonylic compounds as the most abundant compounds. The radical scavenging capacity of plant ethanolic extracts, as evaluated by the DPPH assay, was noteworthy, with IC50values of 92.08 - 105.42 μg/ml.
authors.affiliation: Department of Chemistry, University of Rome 'La Sapienza', Piazzale Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Venditti
authors.affiliation: Department of Environmental Biology, University of Rome 'La Sapienza', Piazzale Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Claudio
authors.initials: C
authors.lastname: Frezza
authors.affiliation: Department of Chemistry, University of Rome 'La Sapienza', Piazzale Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Armandodoriano
authors.initials: A
authors.lastname: Bianco
authors.affiliation: Department of Environmental Biology, University of Rome 'La Sapienza', Piazzale Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Mauro
authors.initials: M
authors.lastname: Serafini
authors.affiliation: EA 2219 - Géoarchitecture, UFR Sciences & Techniques, Université de Bretagne Occidentale, 6 Avenue Victor Le Gorgeu, 29200, Brest, France.|School of Biosciences and Veterinary Medicine, University of Camerino, Via Pontoni 5, 62032, Camerino, Italy.
authors.forename: Kevin
authors.initials: K
authors.lastname: Cianfaglione
authors.affiliation: Department of Ecology, Institute of Biology, University of Pécs, Ifjúság u. 6, 7624, Pécs, Hungary.
authors.forename: David U
authors.initials: DU
authors.lastname: Nagy
authors.affiliation: School of Pharmacy, University of Camerino, via S. Agostino 1, 62032, Camerino, Italy.
authors.forename: Romilde
authors.initials: R
authors.lastname: Iannarelli
authors.affiliation: School of Pharmacy, University of Camerino, via S. Agostino 1, 62032, Camerino, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Caprioli
authors.affiliation: School of Pharmacy, University of Camerino, via S. Agostino 1, 62032, Camerino, Italy.
authors.forename: Filippo
authors.initials: F
authors.lastname: Maggi
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000032:analysis / Q000737:chemistry*; D035261:Plant Components, Aerial / Q000737:chemistry / Q000378:metabolism; D010936:Plant Extracts / Q000737:chemistry; D059808:Polyphenols / Q000737:chemistry; D031366:Stachys / Q000737:chemistry* / Q000378:metabolism
chemical_list: D000975:Antioxidants; D009822:Oils, Volatile; D010936:Plant Extracts; D059808:Polyphenols
keywords: 
  Stachys palustris
  ; Antioxidant activities; Essential oil; Phenolic compounds; Secondary metabolites