SciELO - Scientific Electronic Library Online

 
vol.13 número1First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern MexicoGases de efecto invernadero emitidos por los vehículos agrícolas en Costa Rica índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Cuadernos de Investigación UNED

versión impresa ISSN 1659-4266

Resumen

CHAVERRI, Carlos  y  F. CICCIO, José. Chemical composition of essential oils of the tree Melaleuca quinquenervia (Myrtaceae) cultivated in Costa Rica. Cuadernos de Investigación UNED [online]. 2021, vol.13, n.1, e3327. ISSN 1659-4266.  http://dx.doi.org/10.22458/urj.v13i1.3327.

Introduction:

Melaleuca is a Myrtaceous genus of flowering plants of about 290 species, distributed throughout Indonesia, Papua New Guinea, Australia, and New Caledonia.

Objective:

To identify the chemical composition of the essential oils from leaves, twigs and fruits of M. quinquenervia cultivated as ornamental in Costa Rica. Methods: The essential oils were obtained through the steam distillation process in a Clevenger type apparatus. The chemical composition of the oils was done by GC-FID and GC-MS, using the retention indices on a DB-5 type capillary column in addition to mass spectral fragmentation patterns. Results: The essential oils consisted mainly of terpenoids (88,2-96,6%). A total of 88 compounds were identified, accounting for 93.1-97.0% of the total amount of the oils. The major constituents from the leaf oil were 1,8-cineole (31,5%), viridiflorol (21,7%), and α-pinene (17,9%). The fruit essential oil consisted mainly of viridiflorol (42,1%), α-pinene (15,0%), limonene (6,4%), α-humulene (4,7%), β-caryophyllene (3,9%), and 1,8-cineole (3,4%). The major components of twigs oil were viridiflorol (66,0%), and 1,10-di-epi-cubenol (4,0%).

Conclusion:

The plants introduced in Costa Rica belong to chemotype II whose oils contain as major constituents 1,8-cineole and viridiflorol, and it suggest that the original plants were brought from southern Queensland or northern New South Wales (Australia) or from New Caledonia.

Palabras clave : Melaleuca quinquenervia; essential oils; 1,8-cineole; viridiflorol; α-pinene.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )