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118 Results
Type: Article
Section: Fragrance > Regulatory & Research
Ingredients
Progress in Essential Oils: Lemon Verbena Oil
This month's column discusses the chemical composition of lemon verbena oil.
Ingredients
Pink Pepper Fruit and Leaf Oils
This month's column discusses the chemical composition of pink pepper fruit and leaf oils.
Ingredients
Material review: Kashmir Lavender Oil
A comparison of new Kashmir lavender oils with commercial lavender oils.
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
Investigating New Essential Oils: Rationale, Results and Limitations
Research in new essential oils may provide benefits (missing aroma notes, new sources of isolates, new chiral compounds), but it must reassert its originality and vigor and it must recognize the constraints of economics and regulations.
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.
Regulatory & Research
Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
GLC fingerprint chromatograms of five essential oils.
Regulatory & Research
Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
Part XXII. Determination of the 16 alleged skin sensitizers in essential oils
Ingredients
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.
Ingredients
Progress in Essential Oils: Clary Sage Oil
The author discusses the chemical components of clary sage oil.
Regulatory & Research
Part 2: Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
Fingerprint GLC of the final two of five ketones containing essential oils.
Ingredients
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.
Regulatory & Research
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.
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
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.
Ingredients
Progress in Essential Oils
Sage oil and Wild African Sage Oil.
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