Determinación de la composición química y enantiomérica del aceite esencial de la especie Piper coruscans de la Provincia de Zamora Chinchipe

Abstract

Abstract:In the following investigation we determinate the chemical and enantiomeric composition of the essential oil of the specie Piper Coruscans Kunth. The essential oil was ontained by the process of steam destillation and microdestillation. The identification and quantification of the oil components was made by CG-EM and CG-FID. The enantioselective analysis was realized by gas chromatography with enantioselective column. 58 compounds were identified, the mayoritary groups are the hydrocarbons sesquiterpenes and oxygenated sesquiterpenes with a 54,6% and 19,1%, respectively, followed by the monoterpenes hydrocarbons (5,1%) oxygenated monoterpenes (5,0%) and others (14,4%). The most abundant compounds were: (E)-caryophyllene (24, 55%), α-Humulene (11, 8 %), caryophyllene oxyd (10, 1%) and Linalool (4, 85%). In the floral water 12 compounds were identified, from those, the 77% are oxygenated monoterpenes, 10% oxygenated sesquiterpenes, and other 70%. The two mayoritary compounds were: Linalool (78%), and α-Terpineol (4, 8%). In the enantiomeric analysis 5 pairs of enantiomers: (S)-α- pinene and (R) -α- pinene, (+)-β- pinene and (-)-β- pinene, (R)-α- phellandrene and (S)-α- phellandrene, (R)- Limonene and (S)- Limonene, (R)- Linalool and (S)-Linalool.