brenesii are characterized by compounds of terpenic
chemical nature and ate lacking of phenylpropanoids or benzenoid constituents that are typical of the majority of the Ocotea essential oils investigated previously.
Each oil is used as much as possible in its natural or terpenic
state, without the addition of chemicals or alcohol.
10 SPME/GC-MS in the Characterisation of Terpenic
Resins (Jean Bleton and Alain Tchapla).
cattleianum belongs to terpenic
hydrocarbons, represented by [alpha]-copaene, which constituted approximately 22% the total area of the chromatogram peaks, followed by eucalyptol, (15%), [alpha]-cadinene (10%), and [delta]-selinene (6.
Plants of Mentha suaveolens Ehrh, collected in various regions of Morocco contain a high percentage of oxides such as piperitenone oxide (PEO), piperitone oxide (PO), terpenic
alcohol and terpenic
-5-ketones, all of which account for 65-90% of the total essential oil.
Ginkgo terpenoids consisting of two classes of compounds, ginkgolides and bilobalides (terpenic
lactone and terpenic
trilactone respectively), have been shown in several studies to minimise ischemia induced neurotoxicity and inhibit glutamate induced excitotoxicity (Chandrasekran 2002, Klein 1997, Prehen 1993).
Fennel is considered as a spice due to terpenic
compounds isolated from its fruits volatile oil .
Study has showed a synergistic effect, against Listeria species, with the combination of terpenic
fractions of citrus oil and organic acids as malic acid and ascorbic acid (FRIEDLY et al.