title: Volatile components of horsetail (Hippuris vulgaris L.) growing in central Italy.
abstract: Hippuris vulgaris, also known as horsetail or marestail, is a freshwater macrophyte occurring in lakes, rivers, ponds and marshes. According to 'The IUCN Red List of Threatened Species', H. vulgaris is at a high risk of extinction in Italy in the medium-term future. In the present study, we analysed for the first time the volatile composition of H. vulgaris growing in central Italy. For the purpose, the essential oil was obtained by hydrodistillation and analysed by GC-MS. The chemical composition was dominated by aliphatic compounds such as fatty acids (26.0%), ketones (18.7%) and alkanes (11.4%), whereas terpenoids were poorer and mostly represented by diterpenes (7.4%). n-Hexadecanoic acid (25.5%), hexahydrofarnesyl acetone (17.5%) and trans-phytol (7.4%) were the major volatile constituents. These compounds are here proposed as chemotaxonomic markers of the species.
authors.affiliation: a EA 2219 Géoarchitecture, UFR Sciences & Techniques , Université de Bretagne Occidentale , Brest , France.|b School of Biosciences and Veterinary Medicine , University of Camerino , Camerino , Italy.
authors.forename: Kevin
authors.initials: K
authors.lastname: Cianfaglione
authors.affiliation: c School of Science and Technology , University of Camerino , Camerino , Italy.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Papa
authors.affiliation: d School of Pharmacy , University of Camerino , Camerino , Italy.
authors.forename: Filippo
authors.initials: F
authors.lastname: Maggi
mesh_terms: D004224:Diterpenes; D056727:Endangered Species; D020829:Equisetum / Q000737:chemistry*; D053476:Extinction, Biological; D005227:Fatty Acids / Q000032:analysis; D056145:Freshwater Biology; D008401:Gas Chromatography-Mass Spectrometry; D007558:Italy; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification*; D019308:Palmitic Acid / Q000032:analysis; D013729:Terpenes / Q000032:analysis
chemical_list: D004224:Diterpenes; D005227:Fatty Acids; D009822:Oils, Volatile; D013729:Terpenes; D019308:Palmitic Acid; C494251:trans-phytol
keywords: GC-MS; Hippuris vulgaris; hexadecanoic acid; hexahydrofarnesyl acetone; volatile components