Composición química del aceite esencial de las hojas de Hedyosmum luteynii Todzia (Chloranthaceae)

Abstract

El objetivo de este trabajo fue la caracterización química del aceite esencial de Hedyosmum luteynii, a partir de muestras recolectadas en el bosque natural Jacarón, cantón Colta, provincia de Chimborazo, Ecuador. El aceite esencial se extrajo por hidrodestilación; el análisis de la composicion se realizó mediante un cromatógrafo de gases acoplado a un espectrómetro de masas; la identificación de los componentes se realizó por comparación de sus espectros de masas y de los índices de Kováts reportados en la literatura. Se identificaron 28 compuestos, correspondientes al 98.62% del total de los constituyentes, siendo la mayoría monoterpenos hidrocarburos naturales (83.21%). Los constituyentes más abundantes fueron: α-felandreno (32.72%), α-pineno (13.20%), (Z)-β-ocimeno (10.99%), silvestreno (6.51%), biciclogermacreno (5.05%), 1.8-cineol (4.95%), (E)-β-ocimeno (3.88%) y germacreno D (3.20%). Es la primera vez que se reporta al silvestreno como un componente importante en el aceite esencial de una de las especies del genero Hedyosmum. Este resultado hace evidente una marcada diferencia en la composición química del aceite esencial de H. luteynii respecto a otras especies del género Hedyosmum.

Chemical and Biological Activity Profiling of Hedyosmum strigosum Todzia Essential Oil, an Aromatic Native Shrub from Southern Ecuador

“…There are no previous reports about the extraction of EO from H. strigosum , however, a study from a related species, H. luteynii , from Chimborazo-Ecuador, reported a very low yield of the EO of ca. 0.07% by using the same extraction method [ 14 ]. In contrast, by means of microwave radiation-assisted hydrodistillation from H. translucidum , the EO yield obtained was 1.2% [ 20 ], approximately twice the yield obtained in our study.…”

“…All the reported species for Ecuador grown mainly in cloud forests between 600 and 3000 m a.s.l. [ 14 , 15 ].…”

“…However, there are few studies of its plant species, especially of the aromatic species of the Hedyosmum genus. The importance of the family and the genus, and the fact that only four species of this genus have been studied in Ecuador ( H. luteynii [ 14 ], H . racemosum [ 2 ], H .…”

Pharmacology and Phytochemistry of Ecuadorian Medicinal Plants: An Update and Perspectives

“…Monoterpenes were the main components of the EO that was hydrodistilled from fresh leaves; α-phellandrene (32.72%), α-pinene (13.20%), (Z)-β-ocimene (10.99%), silvestrene (6.51%), bicyclogermacrene (5.05%), 1,8-cineol (4.95%), (E)-β-ocimene (3.88%), and germacrene D (3.20%) predominated [47].…”

Variability of the Chemical Composition and Bioactivity between the Essential Oils Isolated from Male and Female Specimens of Hedyosmum racemosum (Ruiz & Pav.) G. Don

“…Similarly, the EO H. racemosum presents sabinene and β-pinene, which are common compounds in the EO of Hedyosmum species. Torres et al [ 14 ] in 2018 reported the chemical composition of EO of Hedyosmum luteynii Todzia from the main compounds; α-phellandrene (32.72%), α-pinene (13.2%), and germacrene D (3.2%) were also identified in EO H. racemosum as main compounds.…”