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Essential oil analysis of Nepeta teydea Webb. & Berth
Author(s) -
VelascoNegueruela Arturo,
PerezAlonso Maria Jose,
Rodriquez Ana Buades
Publication year - 1989
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.2730040409
Subject(s) - nepeta , chemistry , limonene , camphor , eucalyptol , monoterpene , essential oil , gas chromatography , botany , lamiaceae , chromatography , horticulture , organic chemistry , biology
The volatile oil of Nepeta teydea Webb. & Berth., has been analysed by gas chromatography (GC) and infrared spectroscopy (IR). The essential oil derived from the leaves of Nepeta teydea harvested prior to flowering is characterized by a high content of 4aα‐,7α,7aα‐nepetalactone (89.54%) and by a much lower percentage of other components. Whereas oil extracted from the leaves and flowers collected once flowering had commenced contains as main components: β‐pinene (7.87%), 1,8‐cineole + limonene (14.67%), camphor (5.94%), α‐terpineol (12.64%) and smaller amounts of nepatalactone diasteroisomers as well as nepetalic acid and 5,9‐dehydronepetalactone. The tendency of nepetalactone to hydrolyse is also mentioned.