Uruguayan essential oils. Composition of leaf oil ofMyrcianthes cisplatensis (Camb.) Berg. (?Guayabo colorado?) (Myrtaceae)

Abstract

Myrcianthes cisplatensis leaf oil, obtained by steam distillation, was analysed by GC–FID and GC–MS. Twenty‐six components were identified in the oil (90% of the total composition); the enantiomeric distribution of α‐pinene, β‐pinene, limonene, linalool, terpinen‐4‐ol and α‐terpineol was studied by multidimensional HRGC–HRGC. The major component was 1,8‐cineole (54%). The enantiomeric purity for the (+) enantiomers for the monoterpenes studied was 96% for α‐pinene, 49% for β‐pinene, 100% for limonene, 94% for linalool, 50% for terpinen‐4‐ol and 64% for α‐terpineol. Copyright © 2001 John Wiley & Sons, Ltd.

Optimization and comparison of three methods for extraction of volatile compounds from Cyperus rotundus evaluated by gas chromatography–mass spectrometry

“…Therefore, the extraction with high yield and quality is very important for preparation of essential oil of C. rotundus. Conventionally, the essential oil of plants is isolated by either hydrodistillation (HD) or solvent extraction [9][10][11][12][13]. These techniques present some shortcomings, namely losses of volatile compounds, low extraction efficiency, long extraction time, degradation of unsaturated compounds and toxic solvent residue.…”

Chemical Profiling, Anticholinesterase, Antioxidant, and Antibacterial Potential of the Essential Oil from Myrcianthes discolor (Kunth) McVaugh, an Aromatic Tree from Southern Ecuador

“…On the other hand, from the leaves of M. leuxycola collected in Colombia, 14 out of 33 compounds were monoterpenes, with 1,8-cineole as the major compound (6.3%) [ 21 ]. Other species such as M. fragrans were composed mainly by the oxygenated monoterpenes geranial (31.1%) and neral (23.6%) [ 18 ], M. cisplatensis by hydrocarbonated monoterpenes such as 1,8-cineole (53.8%) and α -pinene (16.6%) [ 25 ], M. osteomeloides and M. pseudomato by hydrocarbonated monoterpenes such as 1,8-cineole (55.7% and 24.4%) and α -pinene (17.9% and 17.1%), respectively [ 26 ], and M. pungens by hydrocarbonated sesquiterpenes such as β -caryophyllene (11.7%) and 1,8-cineole (10.1%) [ 19 ].…”

Chemical Composition and Bioactivity of the Leaf Oil of Calyptranthes pallens (Poir.) Griseb. from Abaco Island, Bahamas

“…The essential oil is dominated by monoterpene hydrocarbons (30.2%) and oxygenated monoterpenoids (46.6%), with lesser amounts of sesquiterpenoids (13.7%) and fatty-acidderived compounds (9.5%). [8,13] and Calyptranthes spruceana [10]. α-Terpineol is also an abundant component of many members of the Myrtaceae, including Eucalyptus [4,9], Melaleuca [14,15], and Eugenia species [6].…”