Comparative study of the chemical composition of essential oils of five Tagetes species collected in Venezuela.
The leaves and inflorescences of five species of Tagetes, family Asteraceae, were collected from different locations in Mérida state, Venezuela, and their essential oils analyzed by GC and GC/MS. Several differences were observed in the composition of these oils, mainly regarding the major components, which for T. caracasana were trans-ocimenone (64.3%) and cis-tagetone (13.7%), and for T. erecta, piperitone (35.9%) and terpinolene (22.2%). High amounts of trans-anethole (87.5%) and estragole (10.7%) were observed in T. filifolia, while T. subulata essential oil contained terpinolene (26.0%), piperitenone (13.1%) and limonene (10.8%). For T. patula, two different oil samples were analyzed, leaves (TPL) and inflorescences (TPI). The TPL oil showed terpinolene (20.9%) and piperitenone (14.0%) as main components, while the TPI sample was composed mainly of beta-caryophyllene (23.7%), terpinolene (15.6%) and cis-beta-ocimene (15.5%).
Organic Biomolecular Research Group, Research Institute, Faculty of Pharmacy and Bioanalysis, University of Los Andes, Mérida, Venezuela.
Kaylin
K
Armas
Janne
J
Rojas
Luis
L
Rojas
Antonio
A
Morales
D009822:Oils, Volatile / Q000032:analysis*; D031686:Tagetes / Q000737:chemistry*; D014687:Venezuela
D009822:Oils, Volatile