Essential Oil Constituents and Yields from Leaves ofBlepharocalyx salicifolius(Kunt) O. Berg andMyracrodruon urundeuva(Allemão) Collected during Daytime

Abstract

The purpose of this study was to evaluate the essential oil composition and yield from leaves of two Brazilian species (Myracrodruon urundeuvaandBlepharocalyx salicifolius) harvested during daytime. Essential oils were obtained by steam distillation and had their yield determined.Blepharocalyx salicifoliuspresented yields of 0.049% (9 a.m.), 0.045% (1 p.m.), and 0.069% (5 p.m.). ForMyracrodruon urundeuva, we found 0.13% (9 a.m.), 0.11% (1 p.m.), and 0.08% (5 p.m.). Finally, compound identification and quantification were carried out by GC-MS and GC-FID techniques, respectively. Thirteen major compounds were identified forBlepharocalyx salicifolius, representing 91.6% of the EOs, of whichp-cymene (25.9%) was detected as amajor component. Nine major compounds were identified forMyracrodruon urundeuva, representing 90.3% of the EOs, whereasβ-myrcene showed the greatest concentration (66.4%).

Antitussive, antispasmodic, bronchodilating and cardiac inotropic effects of the essential oil from Blepharocalyx salicifolius leaves

“…Analyses carried out with plant material from other sources (e.g. Uruguay and Brazil) however, differ from our results (Dellacassa et al 1997;Limberger et al 2001;Furlán et al 2002;Garneau et al 2013;da Costa et al 2014;Godinho et al 2014). The differences in composition could be attributed to geographic and climatic factors prevailing in the places where the plant materials were obtained (Benomari et al 2016).…”

Chemical Composition and Bioactivity of Essential Oil from Blepharocalyx salicifolius

“…These results for major compounds are similar to those reported in the literature regarding globulol [ 17 , 18 ], γ-eudesmol and α-eudesmol [ 22 ], ( E )-caryophyllene [ 21 , 23 ] and α-pinene [ 17 , 18 , 20 , 21 , 27 ]. Other terpenes, such as bicyclogermacrene, viridiflorol, rosifoliol, cubeban-11-ol and palustrol, are being described here for the first time as major components of the essential oil in leaves of B. salicifolius .…”

“…The chemical composition of the essential oil in leaves extracted from this species has been reported and mainly includes 1,8-cineol, α-pinene, limonene, β-pinene, α-terpineol, ( E )-caryophyllene and linalool [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. However, few studies relating to the biological activities of the essential oil from this plant are available.…”

Essential oil analysis of eight 'Nepeta' taxa in Iran

“…50 g of dried samples were hydro-distilled for 3 h using a Clevenger-type apparatus to extract the essential oil according to the European Pharmacopoeia method (Anon., 2005). Essential oil yields were calculated using the equation: ROu= (M/B m ) × 100, where (M) is the mass of the extracted oil (g) and (B m ) is the initial plant biomass (g) (da Costa et al 2014). The extracted essential oils were dried over anhydrous sodium sulfate and stored in sealed vials at 4°C before gas chromatography (GC) and gas chromatography-mass spectrometric (GC-MS) analysis.…”