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Section: Fragrance > Regulatory & Research

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.

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.

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Progress in Essential Oils: Lemon Verbena Oil

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

Progress in Essential Oils: Clary Sage Oil

The author discusses the chemical components of clary sage oil.

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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.

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.

Progress in Essential Oils

Sage oil and Wild African Sage Oil.

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Naturally Sourced F&F Ingredients: Regulations and Verifications Through Carbon-14

Authentication of natural substances continue to be an area of major interest for F&F, with programs and regulations using carbon-14 analysis as a method for distinguishing biobased sourced materials from petroleum-derived material.

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.

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Authentication of Natural Peppermint Oil

This article explores the application of carbon-14 testing as a method to authenticate naturally sourced peppermint oil and screen for adulteration.

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Update on ISO for Essential Oils

International Organization for Standardization (ISO) develops and updates essential oil standards.

This book, sponsored by Millipore Sigma, comprises handpicked columns by P&F+ guest columnists digging into the authenticity, traceability and analysis of essential oils.

Exploring Essential Oils: The eBook

This book, sponsored by Millipore Sigma, comprises handpicked columns by P&F+ guest columnists digging into the authenticity, traceability and analysis of essential oils.

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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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.

Research Rebuttal: Gynecomastia & Essential Oils

Brian M. Lawrence answers questions raised by the recent New England Journal of Medicine report linking the use of lavender and tea tree oils to gynecomastia

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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Pink Pepper Fruit and Leaf Oils

This month's column discusses the chemical composition of pink pepper fruit and leaf oils.

Understanding this analytical method and its role in analyzing botanicals.

HPTLC Fingerprinting for Essential Oil Authenticity

Understanding this analytical method and its role in analyzing botanicals.

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