Stereoisomere Aromastoffe

Mosandl, Armin; Schubert, V.

doi:10.1007/bf01214071

Cited by 25 publications

(4 citation statements)

References 20 publications

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“…The qualitative profile appeared to be highly similar between varieties for both plant material and essential oil. As expected [1][2][3][4], in all cases linalool and linalyl acetate were by far the major aroma compounds, followed by 1,8-cineole and camphor. From these results, it seems evident that the studied varieties of Lavandin could not be distinguished on the basis of their qualitative volatile composition either in plants or in essential oils.…”

Section: Resultsmentioning

confidence: 66%

“…Although they are principally cultivated in southern France, their production is also important in Spain, Argentine, and some countries of Eastern Europe. Because of the relevance of Lavandula species as a fragrance source, the composition of their aroma has been studied earlier [1][2][3][4]. As a result, the occurrence of linalool and linalyl acetate as the major components of Lavandula essential oil, which amounts to 30-55%, has been widely reported [2,3].…”

Section: Introductionmentioning

confidence: 98%

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Enantiomeric composition studies in Lavandula species using supercritical fluids

Flores

Blanch

Castillo

et al. 2005

J of Separation Science

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Characteristic aroma compounds in plants and essential oils of Lavandula from different varieties were examined. The study of the qualitative and quantitative composition of the major volatile components was faced by developing a method based on the use of supercritical fluid extraction-GC-MS (SFE-GC-MS). The optimization of a variety of parameters affecting SFE extraction enabled RSDs from three replicates lower than 2% to be achieved. Equally, recoveries of up to 59% were obtained by applying the proposed method. The use of multidimensional GC was necessary to enantiomerically resolve the target compounds. The obtained results showed enantiomeric purities >90% for all studied compounds in all varieties considered, proving the natural invariability of the enantiomeric composition of the compounds of interest. This information can be useful in authenticity studies as well as in selecting natural sources of enantiomerically pure compounds.

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Section: Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 98%

Enantiomeric composition studies in Lavandula species using supercritical fluids

Flores

Blanch

Castillo

et al. 2005

J of Separation Science

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“…Another important parameter for quality assessment of lavender EOs is the enantiomeric composition of the chiral components . Among the diagnostic markers, linalyl acetate and linalool are both present in a high enantiomeric excess, greater than 99%, of the ( R )‐(‐) form independent of variety, storage and growth conditions …”

Section: Resultsmentioning

confidence: 99%

“…Another important parameter for quality assessment of lavender EOs is the enantiomeric composition of the chiral components. [35] Among the diagnostic markers, linalyl acetate and linalool are both present in a high enantiomeric excess, greater than 99%, of the (R)-(-) form independent of variety, storage and growth conditions. [36] Therefore, the quality assessment of lavender EO should include contemporarily chiral and achiral components quantitative profiling, requiring an analytical platform that combines enantiomeric recognition and high peak capacity suitable to handle the complexity of the resulting 2D pattern.…”

Section: Methods Performance Parametersmentioning

confidence: 99%

Parallel dual secondary‐column‐dual detection comprehensive two‐dimensional gas chromatography: a flexible and reliable analytical tool for essential oils quantitative profiling

Sgorbini

Cagliero

Boggia

et al. 2015

Flavour & Fragrance J

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Comprehensive two‐dimensional gas chromatography (GC×GC) coupled with mass spectrometry (MS) is one of the most powerful analytical techniques now available for detailed analysis, identification and quantitation of medium‐to‐high complexity mixtures. However, the number of application methods that combine fingerprinting and/or profiling with quantitation of informative volatile analytes (targets) is still limited. Possible reasons are related to the huge amount of information to handle and to the availability of reference standards for calibration. Although quantitative analysis by GC×GC is complex it has important advantages: (i) to assess data/results over an extended time frame, varied instrumentation and different laboratories; (ii) to interpret the biological role of (potential) biomarkers; (iii) to evaluate the impact of potent odourants; and/or (iv) to define product quality, e.g. relative to a reference standard. In this study, a GC×2GC‐MS/FID platform consisting of one primary column (1D) coupled to two parallel secondary columns (2D) having an identical inner diameter, stationary phase chemistry and film thickness, which, in turn, are connected to two detectors: a fast quadrupole MS and a FID, was adopted for quantitative profiling of essential oils (EOs). Two medium complexity EOs (i.e. Mentha and Lavandula species) that pose different quantitation challenges were taken as examples and a selection of quality markers subjected to an extensive method performance evaluation (e.g. method validation). Experimental results confirmed the platform's reliability in terms of: linearity, precision and quantitation accuracy. In addition, predicted FID Relative Response Factors (RRFs) based on combustion enthalpies were adopted to extend quantitation to all identified analytes. The experimental data demonstrated the accuracy of the predicted RRFs, supporting their adoption in quantitation of EO markers. This approach is of particular interest for those applications where reference standards are not (easily) available and/or regulated. Copyright © 2015 John Wiley & Sons, Ltd.

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