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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

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Patent Pick: Fruity Rose Variety

Patent Picks are chosen by the editors from publicly available sources. Today's pick describes a new rose hybrid shrub, "AUStruss," which has a strong fruity fragrance.

Study Finds Extensive Variability in Olfactory Receptors

Monell researchers have found that as much as 30 percent of the large array of human olfactory receptor differs between any two individuals.

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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Progress in Essential Oils: Lemon Verbena Oil

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

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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.

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.

FMA Addresses Health Concerns of Essential Oils

The Fragrance Materials Association of the United States (FMA) has released this letter addressing the alleged link between gynecomastia and lavender and tee tree oils.

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.

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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.

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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.

Progress in Essential Oils

Sage oil and Wild African Sage Oil.

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.

Essential Oils & REACH

The European Council has adopted the new European chemicals policy -- REACH (the Registration, Evaluation and Authorization of Chemicals) -- on December 18, 2006.

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.

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IFEAT/RIFM First Results of Essential Oil Safety Testing Complete

The program assesses the potential carcinogenic, mutagenic and reproductive toxicity of around 200 naturals chosen on the basis of their relative production volume, REACH compliance and other criteria.

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.

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