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Type: Article

Unsaturated Components in the Essential Oil of Anthemis nobilis L. (Roman Chamomile)

French authors recently presented their analytical findings on the oil using the negative chemical ionization technique in mass spectrometry. They tracked the GLC profile of the complete oil with the mass numbers of the quasi-molecular ions [M-H]- in combination with the carboxylate anion RCOO-. Thereby inter alia the presence of five esters derived from methacrylic or crotonic acid was reported, however, without giving definite structural assignments for the individual components. The same holds for eight esters of the angelate or tiglate type, respectively. We have worked in a more traditional way and wish here to present the results concerning some of these methacrylates, crotonates, angelates and tiglates. All esters mentioned by us have proved by comparison with authentic synthetically prepared samples.

On-Line HPLC-HRGC in the Analytical Chemistry of Citrus Essential Oils

In this paper we describe some applications of on-line HPLC-HRGC and HPLC-HRGC-MS in the analysis of citrus essential oils.

Essential Oil of French Lavender— Its Composition and Its Adulteration

The composition of oil of French lavender is extremely complex. Of the approximately 150 constituents presently identified, most are only present in trace quantities. However, they play a very important role in the overall fragrance of this oil. There are numerous other constituents still to be identified.

Essential Oils and Aroma Chemicals from Eucalyptus Globulus Labill.

Eucalyptus globulus Labill., which is used in Spain for cellulose and paper production, is grown under an integrated reforestation program. In addition to its importance in the pulp and paper industry, the leaves of E. globulus are used to produce an important essential oil from which 1,8-cineole is isolated. Essential oils can also be obtained from the flowers and fruits of this same tree. Commercial amounts of a resinoid absolute are also obtained from the leaves.

thyme

Progress in Essential Oils:Thymol-rich Thymus vulgaris oils – Part 2

We take a closer look at the various constituents of thymol-rich thyme oils hailing from various parts of Iran, as well as Turkey, Czech Republic, Spain and Brazil.

Progress in Essential Oils: Basil Oil, Part 1

The present article is part one in a series of two that provides the findings of various researchers on the chemical constituents in basil oil. Part 2 appears in the June 2014 edition.

Progress in Essential Oils: Armoise Oil, Part 2

Part two of this two-part series discusses the chemical composition of armoise oil.

Progress in Essential Oils: Basil Oil, Part 2

The present article is part two in a series of two that provides the findings of various researchers on the chemical constituents in basil oil. Part 1 appeared in the May 2014 edition of Perfumer & Flavorist.

Turmeric-root-300

Progress in Essential Oils: Turmeric Oil, Part 1

Turmeric is well-known as the yellow, aromatic spice used in curry powder and numerous Asian culinary dishes. It is the rhizome of Curcuma longa L., a member of the ginger family. Part one of this two-part column compares the chemical compositions of turmeric oil with Curcuma aromatica.

Influence of Harvesting Time on Chemical Composition of Mentha piperita L. Essential Oil

Chemical composition of Mentha piperita

Gas Liquid Chromatography (GLC) fingerprint chromatograms of seven authentic essential oils were obtained in a collaborative study.

Application of Gas-Liquid Chromatography to the Analysis of Essential Oils

Part 1 of 3: Fingerprint chromatograms of esters-containing essential oils: Chamomile English.

Comparative Study of the Essential Oils of Key and Persian Limes

In both cases (distilled and cold-pressed) the oils obtained from Key and Persian limes show remarkable quantitative differences, large enough to explain those found in odor and flavor.

Progress in Essential Oils: Marjoram Oil

In his regularly featured column, consultant Brian Lawrence reviews the findings of a number of researchers on the constituents in various essential oils. This month, he highlights marjoram oil.

Progress in Essential Oils: Armoise Oil

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

Davana Oil

Source, chemistry, and application in flavors and fragrances

fennel1

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.

rosewood

Progress in Essential Oils: Rosewood or Bois-de-Rose Oil

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

A thin layer chromatographic method for estimation of geraniol in oils of palmarosa

The experimental data presented above show that geraniol can be estimated quickly by thin layer chromatography and the results conform with those obtained by gas chromatography.

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