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Enantiomeric composition studies in Lavandula species using supercritical fluids
Author(s) -
Flores Gema,
Blanch Gracia Patricia,
Ruiz del Castillo Maria Luisa,
Herraiz Marta
Publication year - 2005
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200500124
Subject(s) - supercritical fluid extraction , chemistry , supercritical fluid , aroma , composition (language) , chromatography , enantiomer , extraction (chemistry) , organic chemistry , food science , linguistics , philosophy
Abstract Characteristic aroma compounds in plants and essential oils of Lavandula from different varieties were examined. The study of the qualitative and quantitative composition of the major volatile components was faced by developing a method based on the use of supercritical fluid extraction‐GC‐MS (SFE‐GC‐MS). The optimization of a variety of parameters affecting SFE extraction enabled RSDs from three replicates lower than 2% to be achieved. Equally, recoveries of up to 59% were obtained by applying the proposed method. The use of multidimensional GC was necessary to enantiomerically resolve the target compounds. The obtained results showed enantiomeric purities >90% for all studied compounds in all varieties considered, proving the natural invariability of the enantiomeric composition of the compounds of interest. This information can be useful in authenticity studies as well as in selecting natural sources of enantiomerically pure compounds.