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Type: Article

Section: Fragrance > Regulatory & Research

Schiff Bases — A Primer

The flavor and fragrance industry uses many classes of chemicals, including a number that otherwise are encountered only rarely outside of organic chemistry textbooks. A good example is Schiff bases, named for their discoverer, German chemist Hugo Schiff (1834-1915). A Schiff base, along with by-product water, is formed by reaction of an aldehyde with a primary amine.

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.

Analysis as an Aid to Perfumery Or Who Needs Perfumers Anyway?

With all the facilities available today the analyst can monitor the performance of a fragrance in the end product. Not only is it possible to obtain accurate scientific measurements of the stability of the individual components of the fragrance, but the effect of the fragrance on the components of the base can also be measured.

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Bio-Based Butanol as a Solvent for Essential Oil Extractions

The authors outline the differences seen in butanol, ethanol, water and hexane extractions for lavender and mint (including volatile and organoleptic analyses).

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Perfume Genius

With The Fragrance Conservatory, the Fragrance Creators Association offers consumers a one-stop shop for learning about the history, safety and benefits of fragrance.

Demonstrating perfume fixation

Quantitative evidence of fragrance fixation by a 20 mole propoxylate of methyl glucoside was obtained by subjecting a representative series of pure aroma chemicals to accurately measured evaporation and retention studies over time segments of 1,3,6 and 24 hours. The number and variety of aroma chemicals studied permits application of the results to most of the remaining aroma chemicals in the perfumer’s repertory. Improved fixation is possible at very modest cost with this simple application technology.

Sacrosantol was compared to N-SWO for its safety and skin benefits, using various in vitro models.

Skin Benefits of Sacrosantol: A Reconstituted Sandalwood Oil Based on Natural and Biotechnology-derived Ingredients

Part 2 of 2: Reviewing the study’s comparison of Sacrosantol to naturally produced sandalwood oil.

International Perfume Standards Program

In summary, we determined that it was necessary to have a fresh fragrance oil quality control standard representative of the quality of oil available in any given overseas location. We recognize that ensuring worldwide quality required a central location to evaluate and approve the initial samples of oils before being purchased around the world. Once an initial quality was determined, it was necessary to assure that each location had access to a fresh quality control standard representing this quality. A procedure was then set up to assure annual replacement of quality control standards.

Technology and the Perfumer

Instrumentation. Today, however, we are faced with perfuming the myriad of products which flow from the minds of creative marketing. We now view technology as a God-send, a collaborator, a friend in need and sometimes a scapegoat.

Cognitive Aspects of Perfumery

I would like to talk about perfumers as examples of individuals with expertise, and illustrate the differences between novices (nonperfumers) and experts (perfumers) in the context of odor perceptions.

More Perfume Materiak from Isoprene

We should all realize that the new Toxic Substances Control Act, which Congress is about to pass, will increase considerably the cost of developing new aroma chemicals. The new law may reduce the number of such chemicals drastically. Closer cooperation between the fragrance and the aroma chemical industries will now be even more important in order to maintain a healthy level of innovation in areas of mutual interest.

Perfumery and the Sixth Sense

I have shown that estratetraenol and androstadienone may be used as components in perfumes and can enhance such products. We are approaching a radical shift in the concept of perfumery. Henceforth, the design of a perfume should take into account stimulation of the long neglected sixth sense, the vomeronasal system.

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Christophe Laudamiel: Perfumer of the Future

Christophe Laudamiel has spent his career eagerly embracing what he sees as the future of fragrance, and in some ways he already lives there.

Perfumes--Effect of the Product Medium

Perfumer's Notebook. We have considered the phenomena of dilution, chemical reactions, and differences in solubility in the product as contributors to change of odor profile as a perfume is added to a product. Each of these factors has been examined as it affects the release of separate components from the surface of a product, Any may occur. Their existence emphasizes the need for perfumers to be informed of the chemical nature of the product they perfume. It also points to the need for testing of single odorants and simple blends at an early stage in formulation.

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Endpoint. Thinking Outside the Perfume Bottle

My role for Perfumer & Flavorist is to procure and put forth relevant scientific content and observations to advance your formulations for improved F&F applications. So what you’ll find here are some interesting points I’ve observed that could connect to your overall larger project “constellation.”

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Perfume and Flavor Synthetics

Cooperation between the Department of Organic Technology (DOT) at ICT Prague and Aroma Co. began in 1970 with research into problems with benzyl-acetate purity. The cooperative first consisted of an expert consultancy, which gradually grew into a systematic expert-research group focused on fi elds of basic research.

The Computer as the Perfumer’s Helper

By putting in the tremendous variety of detail that every perfumer must accumulate over many years of training and practice and retrieving it quickly, the computer makes the perfumer’s job both easier and more efficient.

Celebrating and Defending Naturals in Perfumery

European Federation of Essential Oils (EFEO) event offered insights from a master perfumer and ingredient experts.

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