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Analysis of the essential oil of Lippia graveolens HBK from El Salvador
Author(s) -
Vernin Gaston,
Lageot Claude,
Gaydou Emile M.,
Parkanyi Cyril
Publication year - 2001
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/ffj.984
Subject(s) - carvacrol , chemistry , thymol , essential oil , monoterpene , lippia , kovats retention index , isopropyl , p cymene , gas chromatography , chromatography , organic chemistry , ruthenium , catalysis
Essential oils from two samples of Lippia graveolens HBK (South American or Mexican oregano, common in El Salvador), were obtained by hydrodistillation and studied by GC and GC–MS. Forty‐five compounds, constituting 92–93% of the oil, were identified. The two major components in both samples were carvacrol (71% and 34.6%, respectively) and thymol (5–7%, respectively). In addition, two unusual isomers, 2‐isopropyl‐4‐methylphenol and 4‐isopropyl‐2‐methylphenol, were found and identified by comparison with mass spectral data and retention indices and tentatively synthesized. Copyright © 2001 John Wiley & Sons, Ltd.