Raw Materials:
Most Popular in:
Natural
New in Natural (page 10 of 18)
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.
Sep 24, 2007 | 11:37 AM CDT
Progress in Essential Oils
By: Brian M. Lawrence
Lawrence discusses the composition of rosemary oil and extract (Rosmarinus officinalis L.) from Italy, India, Egypt, Argentina, Morocco, Algeria and China.
Sep 10, 2007 | 01:10 PM CDT
Progress in Essential Oils
By: Brian M. Lawrence
Lawrence discusses the composition of styrax oil from Turkey, Honduras and Australia. He also discusses the composition of galbanum oil from Iran, and clove oils and extracts from India, Egypt and Madagascar.
Sep 10, 2007 | 01:00 PM CDT
Material Review: Clary Sage Oils
By: Robert Adams and Tonya Yanke
Variation in composition and enantiomeric analyses of commercial vs. new Kashmir clary sage oils. Commercial clary sage oils were analyzed along with a newly available Kashmir oil (Himalayan Foothills Oils, Srinagar, India). All of the oils were high in linalool (14.7–25.1%) and linalyl acetate (55.0–72.4%).
Sep 10, 2007 | 12:00 PM CDT
Woody Notes in Perfumery: Patchouli in Fragrances, Part II
By: Danute Pajaujis Anonis
The evolution and contemporizing of this popular natural material. In Part I (Perfumer & Flavorist magazine, v 31 no. 11, 2006; page 36), the botanical origin of patchouli, the mode of production, patchouli oil types, patchouli composition and pertaining aroma chemicals were discussed.* This article will cover the application of patchouli to fragrances.