Estudio de la composición química y actividad biológica del aceite esencial de Hedyosmum Spectabile en el sector El Tiro límite de Loja- Zamora.

Abstract

Abstract: 2 Abstract The objective of this research was to extract its essential chemical components from the leaves of the Hedyosmum spectabile sample from the collection of the specimen in the El Tiro border area of Loja-Zamora. The essential oil was extracted by hydrodistillation; the careful examination of the composition was carried out by means of a gas chromatograph coupled to a mass spectrometer; the identification of the components was carried out by comparing their mass spectra and the retention indices reported in the literature. 69 compounds were identified, 58 compounds identified with the DB5-MS column corresponding to 98.17% of the total constituents and 44 identified compounds (11 different compounds found) with the HP-INNOWAX column, corresponding to 92.01% of the total constituents, being most hydrocarbon sesquiterpenes (DB5- MS 83.21%; HP INNOWAX 50.54%). The most abundant constituents were: -elemene (10.41%; 13.56%), germacrene D (9.39%; 15.90%), germacrene A (3.78%; 8.45%, (E) -ocimene (7.69%; 7.01%), Linalool (7.37%; 7.01%) and α-pinene (4.88%; 3.93%). This result shows a marked difference in the chemical composition of the essential oil of H. spectabile with respect to other species of the genus Hedyosmum.