Composition of the essential oil of Ylang-Ylang (Cananga odorata Hook Fil. et Thomson forma genuina) from Madagascar

Gaydou, Émile M.; Randriamiharisoa, Robert P.; Bianchini, Jean‐Pierre

doi:10.1021/jf00069a028

Cited by 62 publications

(45 citation statements)

References 5 publications

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“…Table 1 contains the list of identified components, including calculated retention indices and determined volume fractions of components. In general the list of identified compounds agrees reasonably with the available results of analytical studies of ylang-ylang oil in the literature [15][16][17][18][19]. Note that we were able to identify about 30 additional compounds in comparison with previous results [18], such as pentyl acetate, sabinene, a-terpinolene, p-cymene, etc.…”

Section: Procedures Of Retention Filteringsupporting

confidence: 89%

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Use of Large Retention Index Database for Filtering of GC–MS False Positive Identifications of Compounds

Babushok

2012

Chromatographia

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The use of the large retention index database for identification and filtering of false positive hits in GC-MS analysis of the ylang-ylang essential oil is illustrated. Differences between experimental retention indices and database values of retention indices of candidate compounds provide additional constraints on the list of candidates for a target compound. Over 100 components of ylang-ylang essential oil (total grade) were identified. The main components, with concentrations more than 4 %, are b-caryophyllene, germacrene D, benzyl benzoate, linalool, geranyl acetate, a-(E,E)-farnesene and isobornyl acetate.

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Section: Procedures Of Retention Filteringsupporting

confidence: 89%

“…[12,13]. Gas chromatographic studies of ylang-ylang essential oil have been carried out by a number of other investigators [14][15][16][17][18][19].…”

Section: Methodsmentioning

confidence: 99%

Use of Large Retention Index Database for Filtering of GC–MS False Positive Identifications of Compounds

Babushok

2012

Chromatographia

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“…Compound identification was performed by computer library searches and retention-time matches of the natural plant products with authentic standards on the Supelcowax 10 column and a 30-m x 0.32-mm AT-5 column (5% phenyl, 95% dimethylsiloxane, Alltech Associates) operated as described for GC-MS analyses. Authentic samples of volatile compounds were obtained from commercial sources except for (E)-4,8-dimethyl 1,3,7-nonatriene, which was donated by J. H. Tumlinson (USDA, Gainesville, Florida), and (E,E)-cz-farnesene and germacrene D, which were isolated from the hydrocarbon fraction of ylang-ylang oil (Gaydou et al, 1986).…”

Section: Methodsmentioning

confidence: 99%

Volatile compounds from crabapple (Malus spp.) cultivars differing in susceptibility to the Japanese beetle (Popillia japonica Newman)

et al. 1996

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The volatile compounds emitted by leaves of four crabapple cultivars susceptible to damage by Japanese beetles and four relatively resistant cultivars were examined. Twelve compounds, mostly terpene hydrocarbons, were identified from intact leaves. The terpenes (E)-β-ocimene, caryophylene, germacrene D and (E,E)-α-farnesene occurred in significantly higher levels in susceptible cultivars, whereas resistant cultivars produced greater amounts of (E)-4,8-dimethyl 1,3,7-nonatriene and linalool. The relative attractiveness of the cultivars as determined in a pitfall bioassay, however, was not related to their susceptibility to the Japanese beetle as previously determined by defoliation sustained in the field. The attractiveness of individual cultivars was found to be positiviely correlated with linalool as a percent of the total volatile blend emitted by leaves. This study and previous work suggest that variation in susceptibility of crabapple cultivars to defoliation by Japanese beetles is not due to the attractiveness of the individual cultivars but rather to nonvolatile components of susceptibility and/or resistance. A scenario for host location by the Japanese beetle is presented.

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“…Its essential oil is obtained by steam distillation from fresh matured ylang-ylang flowers and is used in the cosmetic and pharmaceutical industries as an active component of antibacterials and in aromatherapy. Its chemical composition is predominantly of volatile terpenes and benzenoid and phenylpropanoid components [18][19][20]. An odorant solution at 10% was obtained by diluting 0.5 ml of the essential oil (stored in 20-ml yellow glass bottles) in 4.5 ml of an odorless solvent (glycerine, paraffin, or mineral oil) immediately before use.…”

Section: Eeg/veeg Protocolmentioning

confidence: 99%

Olfactory stimulation induces delayed responses in epilepsy

Lunardi

Lin

Mameniškienė

et al. 2016

Epilepsy & Behavior

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Precipitation and inhibition of seizures and epileptic discharges by sensory stimuli are receiving increasing attention because they provide insight into natural seizure generation in human epilepsies and can identify potential nonpharmacological therapies. We aimed to investigate modulation (provocation or inhibition) of epileptiform discharges (EDs) in mesial temporal lobe epilepsy (MTLE) versus idiopathic generalized epilepsy (IGE) by olfactory stimulation (OS) compared with standard provocation methods. The underlying hypothesis was that any response would be more likely to occur in MTLE, considering the anatomical connections of the temporal lobe to the olfactory system. This multicenter, international study recruited patients with either MTLE or IGE who were systematically compared for responses to OS using an EEG/video-EEG protocol including a 30-min baseline, twice 3-min olfactory stimulation with ylang-ylang, hyperventilation, and intermittent photic stimulation. The 95% confidence interval (CI) for the baseline EDs in each patient was calculated, and modulation was assumed when the number of EDs during any 3-min test period was outside this CI. A total of 134 subjects (55 with MTLE, 53 with IGE, and 26 healthy controls) were included. Epileptiform discharges were inhibited during OS in about half the patients with both MTLE and IGE, whereas following OS, provocation was seen in 29.1% of patients with MTLE and inhibition in 28.3% of patients with IGE. Olfactory stimulation was less provocative than standard activation methods. The frequent subclinical modulation of epileptic activity in both MTLE and IGE is in striking contrast with the rarity of reports of olfactory seizure precipitation and arrest. Inhibition during OS can be explained by nonspecific arousal. The delayed responses seem to be related to processing of olfactory stimuli in the temporal lobe, thalamus, and frontal cortex.

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Composition of the essential oil of Ylang-Ylang (Cananga odorata Hook Fil. et Thomson forma genuina) from Madagascar

Cited by 62 publications

References 5 publications

Use of Large Retention Index Database for Filtering of GC–MS False Positive Identifications of Compounds

Use of Large Retention Index Database for Filtering of GC–MS False Positive Identifications of Compounds

Volatile compounds from crabapple (Malus spp.) cultivars differing in susceptibility to the Japanese beetle (Popillia japonica Newman)

Olfactory stimulation induces delayed responses in epilepsy

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