Volatile constituents of five Baccharis Species from Northeastern Argentina

Abstract

Os óleos essenciais obtidos por hidrodestilação das partes aéreas de Baccharis gaudichaudiana, B. microcephala, B. penningtonii, B. phyteumoides e B. spicata coletadas em diferentes regiões da Argentina foram analisados qualitativa e quantitativamente utilizando um sistema CG e CG/EM com uma configuração especial. Os rendimentos dos óleos variaram de 0,1 a 0,2% (m/v de planta seca). Diferentes compostos foram observados na composição dos óleos essenciais das espécies estudadas: B. gaudichaudiana apresenta espatulenol e β-pineno como constituintes principais e, B. microcephala e B. spicata, espatulenol e óxido de cariofileno em concentrações mais elevadas. Na última espécie citada, o β-pineno também foi encontrado em quantidades significativas. Germacreno D foi o principal componente presente na B. penningtonii. Finalmente, β-selineno e acetato de fitol E foram os principais componentes encontrados na B. phyteumoides.Essential oils obtained by hydrodistillation from the aerial parts of Baccharis gaudichaudiana, B. microcephala, B. penningtonii, B. phyteumoides and B. spicata collected from different locations in Argentina were analyzed. Qualitative and quantitative analysis were performed using a GC/FID/MS system with a special configuration. Essential oil yields ranged from 0.1 to 0.2% (m/v of dry material). Different chemical patterns were observed in the essential oils composition of the species studied: spathulenol and β-pinene were the main constituents in B. gaudichaudiana, whereas caryophyllene oxide and spathulenol were the major constituents in B. microcephala and B. spicata. In this latter species, β-pinene has also been found in high amounts. Germacrene D was the major compound in B. penningtonii. Finally, β-selinene and phytol acetate E were the main components in B. phyteumoides. Keywords: Baccharis gaudichaudiana, B. microcephala, B. penningtonii, B. phyteumoides, B. spicata, carqueja, essential oils IntroductionThe genus Baccharis belongs to the Asteraceae family. This genus comprises more than 400 species in America, mainly South America. 1 Essential oils from 38 species of this genus have previously been analyzed, accounting in many cases for the value of these plants in traditional medicine as diuretics and stomachics and in fragrance industry. Because of their bitter properties these oils are also frequently used to prepare alcoholic and non-alcoholic beverages. Ninety six species of Baccharis were found in Argentina, and they were classified into 15 sections. Section Caulopterae or Alatae comprises 10 species, all having stems with 2 or 3 longitudinal lateral wings. 2,3 The most common Baccharis species used in traditional medicine and phytotherapy of southern Brazil, Paraguay, Uruguay and Argentina belong to this section: e.g. B. trimera, B. articulata and B. crispa. Among the remaining species of this section, B. phyteumoides, B. penningtonii. B. microcephala and B. gaudichaudiana, were selected to be studied. B. spicata was also analyzed. All these aromatic species are commonly named "carqu...

Sedative effects of essential oils obtained fromBaccharis uncinella

“…As mentioned earlier, among volatile terpenes of natural origin several are known to be centrally active (Heuberger et al, 2010). Some of these can be found in EOs from Bacharis species, such as α-pinene, limonene, linalool, myrcene, α-terpineol, and the sesquiterpenes eudesmene, α-and β-eudesmol, and caryophyllene oxide (Agostini et al, 2005;Lago et al, 2008;Ascari et al, 2009;Retta et al, 2009;Simonsen et al, 2009). Monoterpenes identified in the EO samples here evaluated that can be related to hypno-sedative properties include α-pinene (Sayyah et al, 2004) and limonene (Vale et al, 1999;2002).…”

“…The two oxygenated sesquiterpenes identified in BU-SC are spathulenol (13.39%) and caryophyllene oxide (13.26%), which are often the major components of EOs obtained from Baccharis spp. (Agostini et al, 2005;Lago et al, 2008;Retta et al, 2009). …”

Influence of Polyphenol Levels on the Perception of Aroma in Vitis vinifera cv. Malbec wine

“…Aroma compounds were analysed by means of a GC-FID-MS apparatus with a special configuration (Retta et al, 2009): A Perkin Elmer Clarus 500 equipped with one injector (split/ splitless) was connected using a flow splitter to two capillary columns (J&W, Scientific): a) polyethylene glycol PM ca. 20.000, and b) 5% phenyl-95% methyl silicone, both 60 m x 0.25 mm with 25μ of fixed phase.…”

Changes in the volatile organic profile of Schinus polygamus (Anacardiaceae) and Baccharis spicata (Asteraceae) induced by galling psyllids

“…13 This genus is well-studied and produces a variety of compounds of different structural types. Terpenoids, 12,[14][15] are mainly reported for its pharmacological and biological activity, being widely used in the perfumery industry and traditional medicine. [17][18][19] Baccharis spicata is a shrub native of South Brazil, Paraguay, Uruguay and Argentina.…”