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Raw Materials
New in Raw Materials (page 11 of 20)
Feb 20, 2008 | 03:33 PM CST
Progress in Essential Oils
By: Brian M. Lawrence
Lawrence discusses the composition of lemon verbena oil from Protugal, New Zealand, Italy, Morocco and Corsica. Additionally, he covers the composition of wild thyme oil from Iran, Italy, Croatia and Lithuania.
Feb 20, 2008 | 03:21 PM CST
There’s Nothing ‘Plain’ About Vanilla*
By: Felix Buccellato, Custom Essence Inc.
The misconceptions and popularity surrounding vanilla. In 2002, a pair of astronomers from Johns Hopkins University believed that they had discovered that, after averaging the colors from 200,000 galaxies, taken as a whole the universe is green. However, three months later, the researchers decided that in fact the universe is “actually a very pale beige, almost vanilla white.
Feb 20, 2008 | 10:41 AM CST
A Continuous Steam Stripping Process for the Distillation of Essential Oils
By: G.R. Boucard and Robert W. Serth
Natural essential oils are still believed by many to be of strategic importance to the flavor and fragrance industry. Despite continuing efforts and sophistication in aroma chemical manufacturing, essential oils remain absolutely necessary for fragrances, from the most sophisticated to most cosmetic, and even many household products.
Feb 12, 2008 | 11:55 AM CST
Sensory Properties of Optical Isomers
By: Mans H. Boelens, Harrie Boelens and Leo J. van…
It has long been known that optically active stereoisomers—optical antipodes or enantiomers—can have different sensory qualities. The most illustrative examples of this phenomenon are the enantiomers of carvone and menthol.
Especially during the last decade the interest in the separation and determination of the sensory properties of natural enantiomers has resulted in a large number of publications. This increasing interest was initiated by the development of new chromatographic separation techniques on optically active stationary phases and arose from the need to prove the naturalness of certain enantiomers. Numerous enantiomers have already been isolated and/or synthesized and their sensory properties have been investigated. These sensory properties of the compounds concern their odor qualities and threshold values in certain media. Because the determination of the sensory properties is a rather subjective task due to intra- and inter-individual differences, it is not suprising that some confusion exists about these properties. The sensory properties of a series of volatile enantiomers, which are important in flavors and fragrances, will be discussed in this article.
Dec 20, 2007 | 02:49 PM CST
Topics in Perfumery: Saffron in Perfumery and Flavors
By: Arcadi Boix Camps, Auram Art & Perfume
A meditation on the art and science of flavor and fragrance creation. My friends often tell me that I do not look my age. Maybe they do it to please or flatter me, but may be it is true.
Dec 04, 2007 | 11:45 AM CST
Progress in Essential Oils
By: Brian M. Lawrence
Lawrence discusses the composition of rosemary oil and extract (Rosmarinus officinalis L.) from India, Italy, Algeria, Sardinia, Germany, Tunisia and Morocco.
Dec 04, 2007 | 11:30 AM CST
Aroma Chemical Profile: Menthol
By: George S. Clark (Cameron & Stuart, Inc.)
History, world consumption, synthetics, byproducts, substitutes and derivatives. l-Menthol can be described as unique in the aroma chemical world for the cooling sensation it imparts to the skin and mucous membranes. This cooling effect is far greater than that which could be explained by the cooling induced by the evaporation of a solvent off the skin, such as experienced with ethanol or hexane.
Oct 26, 2007 | 02:42 PM CDT
Progress in Essential Oils
By: Brian M. Lawrence
Lawrence discusses the composition of rosemary oil and extract (Rosmarinus officinalis L.) from Portugal, Italy, Spain, Lebanon, Sardinia, Corsica, Egypt and Morocco. In addition, Lawrence discusses arrayan oil (Luma chequen (Molina) A. Gray) from Peru.
Oct 26, 2007 | 02:36 PM CDT
Topics in Perfumery: Magnolia and Lily of the Valley
By: Arcadi Boix Camps
A continuing meditation on the art, craft, materials and techniques of fragrance creation. I have thought quite often that I am lucky because I live on the outskirts of Barcelona. Visitors believe that Barcelona is very beautiful—and it really is—but unfortunately most people just visit downtown.
Oct 26, 2007 | 02:15 PM CDT
Identification of Iris Scent Volatiles Using Dynamic Headspace with PDMS Foam Trapping and GC-TOFMS
By: Ray Marsili and Cesar Kenaan
The importance of when and how fragrance chemicals are extracted in order to accurately reconstitute the scent of a flower. The alluring fragrances of flowers are the primary inspiration for new perfumes. In the quest to develop novel synthetic aroma chemicals, perfumers have increasingly relied upon the assistance of analytical chemists to help them identify major chemicals responsible for floral fragrances.