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Section: Fragrance

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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.

Citrus Hydrocarbon-Free Essential Oils

Years of experience accumulated in the commercial production of a large variety of hydrocarbon-free oils have shown that these high quality, and often unique products are particularly appropriate for flavor and fragrance applications.

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Biotech Terpenes

Using emerging biotech processes, one large fermentation tank will be able to produce as much valencene as a pile of oranges standing 500 feet tall and weighing 1 million metric tons.

Differences in Chemical and Sensory Properties of Orange Flower and Rose Oils Obtained from Hydrodistillation and from Supercritical C02 Extraction

In this article we will identify some characteristic and essential constituents of bitter orange flowers (Citrus aurantium L., ssp. armzra Engl.) from Spain, Tunisia and Morocco, and roses (Rosa damascena Mill.) from Bulgaria and Turkey, and we will discuss how the consitutents differ depending on whether the oils were isolated by hydrodistillation or by supercritical fluid carbon dioxide extraction of the concretes. hydrodistillatio norbysupercriticai fluid carbon dioxide extraction of the concretes.

Base-catalysed of terpenes

We have projected in the foregoing survey significant advances in the isomerisation of terpenes by base catalysis. Invoking this technique, it si seen how many of the delicate reactions are smoothly accomplished, adding new dimensions to terpene technology. How terpenes, which are notoriously sensitive to thermal and proton impact, have been engineered in the desired direction through base catalysis is an important chapter in the history of terpene chemistry.

F&F Bookshelf: Terpenes

P&Fnow reviews Eberhard Breitmaier's book, Terpenes (Wiley)

The biosynthesis of terpene compounds

From Wallach's isoprene rule to Ruzieka's biogenetic isoprene rule, the monoterpenes and sesquiterpenes have played a significant role in the development of basic concepts concerning the origin of all terpenoid compounds. Yet, while our understanding of the biosynthesis of higher terpenoids, such as steroids, has flourished progress in the biochemistry of monoterpenes and sesquiterpenes has been relatively slow--due in large part to the chemical nature of the mono- and sesquiterpenes (volatility, instability, and so forth) and to the experimental difficulties associated with the plants that produce these compounds.

Fragrances Through Hydrochlorination of Terpenes

Among the reactions that have enriched terpene chemlstry, perhaps the simplest and one of the outstanding is hydrochlorination. This reaction has been used for structural elucidation, for derivatization to identify and/or purify terpenes and for synthesizing perfumery chemicals. How the application of hydrochlorination on terpenes has unearthed the treasure caves of fragrances is a vibrant chapter worthy of portrayal.

The Continuing Evolution of Terpene Products and Specialties

Renessenz is one of the largest F&F ingredient houses based on natural renewable feedstock and is focusing on innovation and sustainability, particularly in the elimination of impurities and excess waste water.

Orange Carbonyls

Chemistry and application

Orange blossom

Orange blossoms are the flowers from the bitter orange tree, Citrus Aurantium Linnaeus. Originating in China, the bitter orange tree was probably introduced to southern France somewhere between the tenth and eleventh centuries AD byt the conquering Arabs. It remained the only orange known to Europeans for about five centuries. Since the fruit of this tree is so unpalatable (though more sour than bitter from this author's first hand experience) it is no wonder that products for fragrances were developed.

RIFM Reports Little Concern on Cyclic and Non-Cyclic Terpene Alcohols

Full report available.

Orange Flower Absolute

Also known as neroli absolute, this material can contribute a sweet floral aroma and is from New Directions Aromatics.

Bitter Orange Obsession

Exploring the rich range of traditional and leading-edge ingredients derived from this iconic tree

Orange 15-Fold Decolorized

This Vigon International oil has both flavor and fragrance applications.

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Ventós' Orange Spain enriched premium

Natural Isolates from Seville Bitter Orange Tree

Bitter orange peel oil is a usefd ingredient for flavorists became of its tenacity. Because of the increase in citrus style scents, the peel oil has gained popularity in the fragrance field, for instance, in men’s line products such as aftershave and body lotions. It serves well in perfumes, toilet waters and cosmetics.

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Citrus materials: Composition of Myrtle Leaf Orange

An in-depth analysis of endocarp composition of this interesting traditional Italian/Sicilian/Calabrian material. Myrtle leaf orange is known as chinotto in Italy and chinois in France, presumably because the fruit originated in China.

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