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Section: Fragrance > Regulatory & Research

Perfumer's Notebook: Stability of Fragrance Profile

An essential feature of any well compounded fragrance is its property of maintaining a constant profile during its exposure. This applies to fragrances applied to the skin, as with colognes or perfumes, or exhibited on the surface of toilet soaps. Marked change in profile during exposure may occur through lack of attention to relative evaporation rates of the perfume components. The rate at which a substance evaporates is, of course, a direct function of its vapor pressure, i.e. its tendency to change from liquid or solid to a gas.

Unique Applications: Novel Oxidation Reactions

The role of the lipase from Candida antarctica in the synthesis of flavor compounds.

By utilizing Natural Deep Eutectic Solvents (NADES), Bioeutetics is said to mimic the way plants elaborate their solvents, using 100% renewable sources therefore replacing petrochemical-based solvents with natural alternatives.

Syensqo Invests in Green Solvents Producer Startup Bioeutectics

By utilizing Natural Deep Eutectic Solvents (NADES), Bioeutetics is said to mimic the way plants elaborate their solvents, using 100% renewable sources therefore replacing petrochemical-based solvents with natural alternatives.

Synthesis and Odor Characteristics of New Gem-Dimethylcyclohexane Derivatives

Searching for cyclic analogs of the insect juvenile hormones, we synthesized a series of new compounds containing the cyclogeraniolene system. This system can be considered as a cyclic form of acyclic terpenes, such as dihydrocitronellol, dihydrogeraniol, and menthocitronellol. The isoprenoid chain in these compounds is rolled to form the cyclohexane ring by connection of the carbon atoms C-7 and C-10. As compared with the classical cyclic systems of the cyclogeraniol type, the compounds obtained by us contain the gem-dimethyl groups in the 3-position in relation to a chain with the functional group.

Perfume Materials: Prediction of Fragrance Headspace Concentrations from Physico-Chemical Properties

Disposition of fragrance ingredients on skin

SCCS Extends Comment Deadline for Vetiveryl Acetate

The Scientific Committee on Consumer Safety (SCCS) has extended its comment deadline for the fragrance ingredient vetiveryl acetate to May 19, 2015.

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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.

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Progress in Essential Oils: Lemon Verbena Oil

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

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Chemical Characterization of Vanilla pompona Scheide, Part IV

Vanilla pompona is resistant to climate change and diseases, and therefore is preferred for hybridization with V. planifolia. Its chemical characterization was carried out in a series of studies, described in this last of four parts.

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A Natural and a Pod: Commonalities in Vanilla and Tea Processing

Shared chemistry, biochemistry and processing in tea leaf and vanilla pod.

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