Estudio químico y enantiomérico de los aceites esenciales obtenidos por destilación de la especie dioica Hedyosmum scabrum (Ruiz & Pav.) Solms y de seis metabolitos fijos presentes

Abstract

Abstract: The leaves of H. scabrum male and female were collected in the Saraguro. Essential oils were obtained by hydrodistillation. The chemical composition of the essential oil was determined by gas chromatography coupled to mass spectrometry and a flame ionization detector. In addition, the samples were submitted to an enantiomeric analysis. Ninety-three compounds were identified representing 94.90% for male and 95.35% for female. The enantiomeric ratio of four components (<&#7838;-> Pinene, Sabinene, Limonene, Linalol) was determined. Another part of the plant was subjected to extraction, isolation and characterization of secondary metabolites was performed by spectroscopic techniques NMR, GC-MS and GC-FID. In H. scabrum male were detected the presence of two mixtures of esters. The first mixture contains trans-ferulic acid with pinocarveol and chrysanthenol, while the other mixture has 4-hydroxycinnamic acid with the same alcohols. In H. scabrum female is present the mixture of 4-hydroxycinnamic acid with pinocarveol and chrysanthenol alcohols. The total mixtures of the esters were subjected to hydrolysis and the alcohol fractions were studied by GC-MS, CG-FID and the chiral column: diethyl tert-butylsilyl-BETA-cyclodextrin.