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Section: Fragrance > Regulatory & Research
Ingredients
Detection of new trace constituents in the essential oils of Cymbopogon flexuosus
The essential oil of lemongrass is derived chiefly from two important species of Cymbopogon, C. flexuosus, which has been the subject of numerous investigations, and C. citratus, C. flexuosus (Stend.) Wats (sym. Andropogon nardus var. flexuosus Hack), is native to India. Its two strains, SD-68 and OD-19, which have been cultivated at our Kukrail Research Farm, Lucknow, were examined by gas chromatography and the presence of new trace constituents was established for the first time.
Ingredients
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.
Ingredients
Progress in Essential Oils: Clary Sage Oil
The author discusses the chemical components of clary sage oil.
Ingredients
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%).
Ingredients
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.
Ingredients
Progress in Essential Oils: Lemon Verbena Oil
This month's column discusses the chemical composition of lemon verbena oil.
Regulatory & Research
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.
Ingredients
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.
Regulatory & Research
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.
Ingredients
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.
Ingredients
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.
Ingredients
Progress in Essential Oils
Sage oil and Wild African Sage Oil.
Regulatory & Research
Clove Oil Derivatives: The Case of U.S. Natural Vanillin Authentication
Uncovering the nuances of vanillin sourcing and natural vanillin ex clove authentication.
Regulatory & Research
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.
Ingredients
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.
Regulatory & Research
Gas-Liquid Chromatography Analysis of Fennel and Wormwood Oils
Part 1 of 2: Fingerprint GLC of three of five ketone-containing essential oils.
Regulatory & Research
Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
Fingerprint GLCa of selected Texas, Virginia, China, Atlas and Himalaya cedarwood essential oils intended for REACH registration.
Regulatory & Research
Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
Part 3 of 3: Fingerprint chromatographs of esters-containing essential oils: neroli oil, petitgrain bigarade oil and petitgrain oil Paraguay.
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