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Section: Fragrance > Regulatory & Research
Ingredients
Odor tenacity of perfumery materials
When perfumers try to compound fragrances, they must pay attention to the nature of the chemicals used in order to create well harmonized fragrances. It will he easier to create fragrances if the constituents of the essential oils going into them, and their chemical and physical natures, are known. In order to create well balanced perfumes one must know not only the odors of the ingredients but also their odor tenacities. Trained perfumers understand these phenomena from experience, but this kind of experimental data may be helpful to young perfumers.
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
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
Synthesis and odor characteristics of some analogs of acyclic sesquiterpenoids
In summary, it could be stated that the crucial factors affecting the odor of the compounds under investigation are the carbon chain structures and type of functional groups. These observations confirm Beets’ thesis that “the profile of a molecule with an easily accessible functional group is responsible for the odor type.
Ingredients
Comparative Investigations of the Essential Oil and Volatiles of Spearmint
The objective of this work is to identify the fragrance compounds of this oil and its SPME-headspace by means of gas chromatographic- spectroscopic (GC and GC/MS using different polar and chiral phases) and olfactoric methods (GC-sniffing technique and olfactory correlations) to find out the importance of each single constituent with their specific odor attributes, responsible for the characteristic and pleasant spearmint aroma for the first time.
Regulatory & Research
Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
GLC fingerprint chromatograms of five essential oils.
Regulatory & Research
Headspace Measurement of Evaporation Rates of Perfumes Applied onto Skin: Application to Rose Essential Oils and Their Principal Components
The goal of this research was to study, by headspace analysis, the diffusion of the major components essential rose oils applied onto skin.
Ingredients
Rational Odorant Design: Fantasy or Feasibility?
Exploring the two approaches to rational odor design and the possibilities of each. Why do we strive for rational design of odorants? Since the birth of synthetic organic chemistry in the mid-19th century, fragrance chemists have sought to design and produce fragrance ingredients to supplement those obtained from plant (and formerly animal) sources.
Ingredients
The sensory psychologyof odor mixture: Changes in odor strength and odor hedonics
Psychologist's Corner. This report is concerned with research efforts on odor-mixture perception. In most of the studies reported here investigators systematically mixed together two (or perhaps a larger but still manageable number of) chemicals in a limited range of concentrations, rather than trying to imitate nature in her mélange of ingredients. Two major aspects of odor mixture, the perception of odor intensity in these mixtures and the perception of odor hedonics, are discussed.
Ingredients
Detection of new trace constituents in the essential oils of Cymbopogon flexuosus
The essential oil of lemongrass is derived chiefly from two important species of Cymbopogon, C. flexuosus, which has been the subject of numerous investigations, and C. citratus, C. flexuosus (Stend.) Wats (sym. Andropogon nardus var. flexuosus Hack), is native to India. Its two strains, SD-68 and OD-19, which have been cultivated at our Kukrail Research Farm, Lucknow, were examined by gas chromatography and the presence of new trace constituents was established for the first time.
Regulatory & Research
One-on-One with SensoryCo. President and CEO Bryan Roe
Perfumer & Flavorist
+ connects with SensoryCo.'s president and CEO, Bryan Roe, to discuss the company's inception, scent formation process and much more.
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
The Field of Odors: Toward a Universal Language for Odor Relationships
We believe that the Field of Odors approach allows us to discover the knowledge of odors that we all subconsciously possess and gives structure to this. The common aspect of this knowledge is important to the rapid creation of a coherent and easy-to-learn language, This language represents a way for communication on the subject of odors to proceed in a purely objective way.
Regulatory & Research
Application of Gas-Liquid Chromatography to the Analysis of Essential Oils: Part 2
Part 2 of 3: Fingerprint chromatograms of esters-containing essential oils: bergamot oil, clary sage oil and spike lavender oil.
Ingredients
Material Review: Application of Gas-Liquid Chromatography to the Analysis of Essential Oils
Fingerprints of 12 essential oils
Regulatory & Research
OnScent Debuts Creative Center in New Jersey Focused on Fragrance Technology & Sustainable Practices
The facility is designed to serve as the "nucleus" for OnScent’s work including integrating advanced technological processes to explore new aromatic compounds
Ingredients
Some Aspects Of Qualitative Structure-Odor Relationships
Qualitative odor-structure relationships have been applied for more than a century. The results of these studies are mostly the consequence (outcome) of the application of common sense gathered by experience. Two main features characterize the molecular structures of odorant molecules: “electronicity” (electronic charge distribution over a molecule) and “stereocity” (volume, shape and profile of a molecule).
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