title: Essential oil composition from two species of Piperaceae family grown in Colombia.
abstract: Essential oil compositions of aerial parts from two species in the Piper (Piperaceae family) genera: Piper lanceaefolium Kunth and Piper hispidum Sw., frequently called deflated (for the anti-inflammatory activity) or cord. Piperaceae leaves were collected in different regions of the Chocó department in northwestern Colombia and identified by botanists from Colombian National Herbarium, where a voucher of each specimen were deposited (No- COL 519993 and No- COL 519969, respectively). The essential oils were obtained by microwave-assisted hydrodistillation (MWHD) and analyzed by gas chromatography-mass spectrometry (GC-MS). The P. lanceaefolium essential oil was sesquiterpenoid type (71.7%). This composition was represented by sesquiterpenes hydrocarbons (58.5%) and by their oxygenated derivates (13.2%); the main compounds were, trans-beta-caryophyllene (11.6%) and germacrene D (10.7%) followed by alpha-selinene (7.8%), beta-pinene (5.4%), beta-selinene (4.8%), and alpha-cubebene (4.3%). The Piper hispidum essential oil also was sesquiterpene type (74.4%) and oxygenated sesquiterpenes (46.4%) followed by sesquiterpenes hydrocarbons (28.0%). The main compounds were trans-nerolidol (23.6%) and caryophyllene oxide (5.4%) followed by beta-elemene (5.1%), trans-beta-caryophyllene (5.1%), curzerene (4.9%), and germacrene B (4.5%). Trans-beta-caryophyllene presents the higher percentage of the common compounds in the two species' essential oil (11.6% and 5.1% in P. lanceaefolium and P. hispidum, respectively).
authors.affiliation: Universidad Tecnológica del Chocó, bloque 6 laboratorio 316, Grupo de Productos Naturales, Quibdó-Chocó, Colombia. nayivepino@yahoo.com
authors.forename: Nayive
authors.initials: N
authors.lastname: Pino Benitez
authors.forename: Erika M
authors.initials: EM
authors.lastname: Meléndez León
authors.forename: Elena E
authors.initials: EE
authors.lastname: Stashenko
mesh_terms: D003105:Colombia; D009822:Oils, Volatile / Q000032:analysis*; D026321:Piperaceae / Q000737:chemistry*; D010938:Plant Oils / Q000032:analysis*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils