Odoriferous Substances

Odoriferous Substances

 

organic compounds with characteristic pleasant odors used in the manufacture of various perfume and cosmetic goods, soaps, synthetic washing preparations, and food products. Odoriferous substances are abundant in nature. They form part of essential oils, aromatic resins, and other complex mixtures of organic substances extracted from animal and plant products.

Significant experimental data have been gathered about the connection between the odor of organic compounds and their structure; however, these data are not complete enough to reliably predict the odor of a newly synthesized substance on the basis of knowledge of all its structural features. Nevertheless, it is possible to establish some rules about the influence of an organic compound’s structural features on its odor. In particular, the size of the molecule and the degree of its branching greatly influence the odor. Compounds with a branched chain of carbon atoms in the molecule have stronger and often more pleasant odors than compounds with linear molecules. The odor is also influenced by the position of substitutes, the presence of multiple bonds, spatial factors, and molecular structure as a whole. Thus, of several valuable odoriferous substances used in industry, linalool (I) has the odor of lilies of the valley, citronellol (II) and beta-phenylethyl alcohol (III) have the odor of roses, citral (IV) has the odor of lemon, phenyl ether (V) that of geraniums, and diluted Ionone solutions, of violets.

The USSR produces thousands of tons of odoriferous substances yearly of more than 150 names. In industry odoriferous substances are synthesized from chemical raw materials and from products of the wood chemical industry (turpentines). Essential oils have also not lost their importance as sources of some odoriferous substances. It has become possible to synthesize many odoriferous substances that were formerly available only from natural raw materials as well as odoriferous substances not found in nature.

REFERENCES

Khimiia i tekhnologiia dushistykh veshchestv. Edited by V. M. Rodionov. Moscow, 1953.
Daev, N. A., and N. I. Skvortsova. “Uspekhi khimii dushistykh veshchestv v SSSR za 50 let.” Tr. Vsesoiuznogo nauchnoissledovatel’skogo in-ta sinteticheskikh i natural’nykh dushistykh veshchestv, 1968, issue 8, p. 3.
Shulov, L. M. “Dushistye veshchestva.” Priroda , 1969, no. 3, p. 38.
Voitkevich, S. A. “Sviaz’ mezhdu strukturoi dushistykh veshchestv i ikh zapakhom.” Zhurnal Vsesoiuznogo khimicheskogo obshchestva im. D. I. Mendeleeva, 1969, vol. 14, no. 2, p. 196.
References in periodicals archive ?
The Philippines top commodity imports from Spain are mixtures of odoriferous substances and mixtures used in the food or drink industries, women s or girls outerwear, tubes, pipes and hoses, spirits obtained by distilling grape wine or grape marc, and other preparations of a kind used in animal feeding.
The tests are only deemed to be successfully completed if the capsules are found to open and exude the odoriferous substances just before the component fails.
Smell sensors could also monitor plastic water and gas supply pipes to detect any cracks, because the odoriferous substances emitted are noticeable over long distances.
Inside the capsule there is a porous, hardly deformable silicon oxide core which absorbs the odoriferous substance.
1000: 'mixtures of odoriferous substances used in the manufacturing of non-alcoholic beverages.
And as they digest body materials - skin, oils, sweat, what have you - they proliferate, and they release odoriferous substances,'' explains Dr.
The chemicals that serve as dinner bells for these freeloading flies are the same odoriferous substances that repel people and most insects, the researchers report in the Sept.
Thomas and Noble used 16 odoriferous substances compared to 8 for Langworthy and Jennings; Thomas and Noble administered 300 five-trial problems instead of Langworthy and Jenning's 30 problems each one administered to a criterion (16 of 20 successive trials correct) or a maximum number of trials (100); and Thomas and Noble baited all three food wells.
com/research/9225f8/the_2009_import_an) has announced the addition of the "The 2009 Import and Export Market for Mixtures of Odoriferous Substances with One or More Odoriferous Substances As Industrial Raw Materials in Ireland" report to their offering.
On the demand side, exporters and strategic planners focusing on mixtures of odoriferous substances with one or more odoriferous substances as industrial raw materials in Ireland face a number of questions.
This report was created for strategic planners, international marketing executives and import/export managers who are concerned with the market for mixtures of odoriferous substances with one or more odoriferous substances as industrial raw materials in Ireland.
In what follows, Chapter 2 begins by summarizing where Ireland fits into the world market for imported and exported mixtures of odoriferous substances with one or more odoriferous substances as industrial raw materials.