Chromatographic investigation of jasmin absolutes

Verzele, M.; Maes, G; Vuye, A; Godefroot, M.; Alboom, Maité Van; Vervisch, J.; Sandra, Patrick

doi:10.1016/s0021-9673(00)82664-3

Cited by 16 publications

(37 citation statements)

References 19 publications

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“…To simplify the experiment, we used only indole in jasind, but at a slightly higher level (6%) than in natural jasmine oil to compensate for the lack of para-cresol. We note that the components in the model jasmine we created are present in natural jasmine (Verzele et al, 1981;Toda et al, 1983;Kaiser, 1988) with the exception of hexylcinnamic aldehyde, which has been found to be a useful building block of jasmine odor, and that the components in the model are sufficient to capture many aspects of natural jasmine.) All stimuli were diluted 1:5 in dipropylene glycol in such a way that the eight components would be present at the same level in jasmine and jasind regardless of the presence of indole.…”

Section: Methodsmentioning

confidence: 99%

How Pleasant and Unpleasant Stimuli Combine in Different Brain Regions: Odor Mixtures

Grabenhorst¹,

Rolls²,

Margot³

et al. 2007

J. Neurosci.

195

148

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Many affective stimuli are hedonically complex mixtures containing both pleasant and unpleasant components. To investigate whether the brain represents the overall affective value of such complex stimuli, or the affective value of the different components simultaneously, we used functional magnetic resonance imaging to measure brain activations to a pleasant odor (jasmine), an unpleasant odor (indole), and a mixture of the two that was pleasant. In brain regions that represented the pleasantness of the odors such as the medial orbitofrontal cortex (as shown by activations that correlated with the pleasantness ratings), the mixture produced activations of similar magnitude to the pleasant jasmine, but very different from the unpleasant indole. These regions thus emphasize the pleasant aspects of the mixture. In contrast, in regions representing the unpleasantness of odors such as the dorsal anterior cingulate and midorbitofrontal cortex the mixture produced activations that were relatively further from the pleasant component jasmine and closer to the indole. These regions thus emphasize the unpleasant aspects of the mixture. Thus mixtures that are found pleasant can have components that are separately pleasant and unpleasant, and the brain can separately and simultaneously represent the positive and negative hedonic value of a complex affective stimulus that contains both pleasant and unpleasant olfactory components. This type of representation may be important for affective decision making in the brain in that separate representations of different affective components of the same sensory stimulus may provide the inputs for making a decision about whether to choose the stimulus or not.

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Section: Methodsmentioning

confidence: 99%

How Pleasant and Unpleasant Stimuli Combine in Different Brain Regions: Odor Mixtures

Grabenhorst¹,

Rolls²,

Margot³

et al. 2007

J. Neurosci.

195

148

View full text Add to dashboard Cite

show abstract

“…1), [17][18][19][20][21] (+)-(S)-geranyllinalool (6) (Fig. 3), [26][27][28][29][30][31][32][33][34][35][36] and the cembranoids (−)-(R)-nephthenol (7) 37-44 and 11,12-epoxysarcophytol A (8) ( Signals for four methyl groups, seven methylene groups, and six methine groups were identified by 1 H NMR, 13 C NMR, and DEPT measurements. Complete proton to carbon assignment was achieved by HSQC and HMBC measurements (Table S2 †).…”

Section: Sinularia Gravismentioning

confidence: 99%

“…35 Thus, it plays a decisive role in the fragrance of jasmine. 26,30,34 Whilst the laevorotatory (R)-enantiomer has been described frequently, the dextrorotatory (S)-enantiomer is rare. It has been found in jasmine oil 26 and in the freshwater aquatic plant Potamogeton pectinatus.…”

Section: Sinularia Gravismentioning

confidence: 99%

Chemical constituents of the soft corals Sinularia vanderlandi and Sinularia gravis from the coast of Madagascar

et al. 2016

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The crude extracts of the Madagascan soft corals Sinularia vanderlandi and Sinularia gravis (Alcyoniidae) showed activity against Plasmodium falciparum which led us to study their chemical constituents. The new cadinane-type sesquiterpenoid vanderlandin (1) has been obtained from S. vanderlandi along with 24-methylenecholesterol (2). Four new compounds, the spatane-type diterpenoid gravilin (3), the monoalkylmonoacylglycerol 4, the dihomoditerpenoid ketone 5, and isodecaryiol (9), along with the three known compounds (+)-(S)-geranyllinalool (6), (-)-(R)-nephthenol (7), and 11,12-epoxysarcophytol A (8) have been isolated from the methanol extract of S. gravis. The structures were elucidated based on extensive spectroscopic methods, in particular various 2D NMR techniques. The structure of isodecaryiol (9) including its absolute configuration could be confirmed by X-ray diffraction.

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“…To simplify the experiment, we used only indole in jasind, but at a slightly higher level (6%) than in usual jasmine oil to compensate for the lack of para-cresol. We note that the components in the model jasmine we created are present in natural jasmine (Demole, 1982;Kaiser, 1988;Toda et al, 1983;Verzele et al, 1981) with the exception of hexylcinnamic aldehyde which has been found to be a useful building block of jasmine odor (Demole, 1982), and that the components in the model are sufficient to capture many aspects of natural jasmine.) All stimuli were diluted 1:5 in dipropylene glycol in such a way that the 8 components would be present at the same level in jas and jasind regardless of the presence of indole.…”

Section: Stimulimentioning

confidence: 99%

A hedonically complex odor mixture produces an attentional capture effect in the brain

2011

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Chromatographic investigation of jasmin absolutes

Cited by 16 publications

References 19 publications

How Pleasant and Unpleasant Stimuli Combine in Different Brain Regions: Odor Mixtures

How Pleasant and Unpleasant Stimuli Combine in Different Brain Regions: Odor Mixtures

Chemical constituents of the soft corals Sinularia vanderlandi and Sinularia gravis from the coast of Madagascar

A hedonically complex odor mixture produces an attentional capture effect in the brain

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