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Type: Article

Section: Fragrance > Regulatory & Research

Thyme Varieties From Different Geographical Origins

Comparison of Thyme Varieties from Different Geographical Origins

LECO’s new Pegasus BTX promises ultimate sensitivity and revamped ion path integrity. See how this advanced upgrade in the world of GC-TOFMS illuminates even the lowest-level chemical differentiators of dried thyme samples were sourced from four different

Progress in Essential Oils: Clary Sage Oil

The author discusses the chemical components of clary sage oil.

Material Review: Clary Sage Oils

Variation in composition and enantiomeric analyses of commercial vs. new Kashmir clary sage oils. Commercial clary sage oils were analyzed along with a newly available Kashmir oil (Himalayan Foothills Oils, Srinagar, India). All of the oils were high in linalool (14.7–25.1%) and linalyl acetate (55.0–72.4%).

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Is Cineole Detrimental to TeaTree Oil?

This paper evaluates the claims about cineole in tea tree oil and reviews the results of recent skin irritancy and bioactivity investigations which show that cineole is neither an irritant nor an antagonist.

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Progress in Essential Oils: Lemon Verbena Oil

This month's column discusses the chemical composition of lemon verbena oil.

Pattern Recognition Methods for Discrimination of Essential Oils (Rose Oils) by Their Gas Chromatograms

It is possible to distinguish between essential oils of the same type and their mixtures by analysing their gas chromatograms using a pattern recognition method.

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Progress in Essential Oils: Sweet Fennel Oil and Extract

In this column, Brian M. Lawrence reviews the composition of sweet fennel oil and extract as found by various researchers. For example, a commercial sample of sweet fennel oil was screened for its anti-platelet activity by Tognolini et al. (2006) and Guerini et al. (2006) using GC-FID and GC/MS. Results are reported herein.

New compounds with small rings in essential oils

Despite the continuing discovery of new synthetic fragrance raw materials, essential oils still remain the other half of the foundation of perfumery. Consequently, the analysis of essential oils is still very much of interest, as is illustrated by the excellent series of articles by Lawrence in this journal. We now wish to report a number of products containing small (three-, four-, and five-membered) rings, most of which are found for the first time in essential oils. These products were isolated by chemical group separation, liquid and gas chromatography, whereupon the structures were determined by mass, infrared and NMR spectroscopy. All structures were confirmed by synthesis. The essential oils used were obtained from regular commercial sources.

Essential Oil Essential Oil Research and Symposia 1969-1989

The time is ripe, perhaps, to review the development which has taken place since the Essential Oil Symposium started in 1969—and try to see a little ahead. The aims of the symposia should be as before: namely, to bring together scientists who are interested in all aspects of essential oil research, for discussions of common problems and presentation of their results, to the benefit of essential oil research in general.

Comparison of isolation procedures for essential oils. IV. Leyland cypress

In this paper the results of a comparable investigation on the volatile leaf oil of the Leyland cypress, x Cupressocyparis leylandii (Dall. & Jacks.) Dall. (Cupressaceae) will he considered.

Progress in Essential Oils

Sage oil and Wild African Sage Oil.

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Comparative Investigations of the Essential Oil and Volatiles of Spearmint

The objective of this work is to identify the fragrance compounds of this oil and its SPME-headspace by means of gas chromatographic- spectroscopic (GC and GC/MS using different polar and chiral phases) and olfactoric methods (GC-sniffing technique and olfactory correlations) to find out the importance of each single constituent with their specific odor attributes, responsible for the characteristic and pleasant spearmint aroma for the first time.

GLC fingerprint chromatograms of five authentic essential oils were obtained in a collaborative study.

Gas-Liquid Chromatography Analysis of Fennel and Wormwood Oils

Part 1 of 2: Fingerprint GLC of three of five ketone-containing essential oils.

Most of the vanillin in the market comes from chemical synthesis, with approximately 85% produced from Guaiacol (petrochemical products), while the rest are from lignin and eugenol.

Clove Oil Derivatives: The Case of U.S. Natural Vanillin Authentication

Uncovering the nuances of vanillin sourcing and natural vanillin ex clove authentication.

Evaluation of the Genuineness of Cold-pressed Bergamot Oil

Traditional analyses, high resolution gas chromatographic and chiral analyses.

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The World's Only Organic-certified Australian Sandalwood Oil

Mount Romance is the leader in double-distilled Australian sandalwood that is both fair-trade and organic-certified.

A New Method of Separation of Citral from Lemongrass Oil

Although many methods are known for the separation of citral from lemongrass (Cymbopogen flexuosus) oil, like fractional distillation, adduct formation and regeneration, the purity and the yield of citral as separated are not satisfactory. A new method for separation of citral in pure form and in near quantitative yield uses the column chromatographic technique. This method may also be adapted for large scale separation of citral and hence can be of commercial importance.

Gas Chromatographic Analysis on Turkish Rose Oil, Absolute and Concrete

The analysis of rose products maybe realized by gas or liquid chromatographic techniques. Our investigations showed that liquid chromatography have been used only in a few studies to separate essential oils and terpenoid compounds, and a sufficient separation has not been obtained.

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