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Essential oil analysis of Teucrium libanitis and T. turredanum by GC and GC–MS
Author(s) -
Blázquez M. Amparo,
Pérez Isabel,
Boira Herminio
Publication year - 2003
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.1256
Subject(s) - chemistry , sesquiterpene , monoterpene , teucrium , essential oil , gas chromatography–mass spectrometry , humulene , caryophyllene , chromatography , lamiaceae , stereochemistry , mass spectrometry , botany , organic chemistry , biology
The chemical composition of the six essential oils obtained from Teucrium libanitis and Teucrium turredanum collected at different localities was analysed by GC and GC–MS. Fifty‐three constituents were identied. The oil of T. libanitis is characterized by the monoterpene α ‐pinene (9.9–21.2%) and the sesquiterpene δ ‐cadinene (5.3–9.7%), while that of T. turredanum had a higher content of sesquiterpenoids: β ‐caryophyllene (15.6–32.6%), α ‐humulene (4.7–10.1%) and β ‐bisabolol (6.4–8.3%), and a lower percentage of monoterpenoids (<1%). A multivariate procedure (hierarchical clustering) for detecting natural grouping established that T. libanitis and T. turredanum constitute two independent taxa. Copyright © 2003 John Wiley & Sons, Ltd.