Abstract
The essential oils isolated from aerial parts of Eryngium bungei Bioss. by hydrodistillation (HD), microwave-assisted hydrodistillation (MWHD) and head space solid-phase microextraction (HS-SPME) techniques, were analyzed by means of GC and GC-MS methods. The main components of the water distilled oil were found to be borneol (44.4 %), isobornyl formate (14.7 %), isoborneol (9.2% ), 1,8-cineol (9.1 %) and camphor (7.9 %), while the oil extracted by MWHD method was mainly composed of yomogi alcohol (14.3 %), terpinolene (14.2 %), cumin alcohol (13.6 %), borneol (12.4 %), Z-β-ocimene (10.6 %) and sabinene (6.2 %). Furthermore, in the oil obtained by HS-SPME, the most abundant detected fractions were borneol (22.1 %), camphor (11.1 %), terpinolene (8.1 %), carvacrol (7.5 %) and yomogi alcohol (5.2 %). Despite of some differences present in the oils compositions, all of them were rich in oxygenated monoterpenes. The results confirm the high potential of MWHD, HS-SPME as advanced, environment compatible and promising instrumentations for reliable and fast analysis of the E. bungei volatile oil.
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