or in any case with properties that are inconvenient from a therapeutic point of view. Examples of this type are given by the "valerianic aldehyde, irritant and tussigenic; but also by the essential oil of Niaouli from which aldehydes having irritating properties on the mucous membranes must be removed. In such situations, it is necessary to purify the raw essences of unwanted constituents by means of the fractional distillation technique, which allows to separate a well-defined volatile chemical substance from those with which it forms a mixture.
Terpene hydrocarbons are also often eliminated. These unsaturated compounds are irritating to the skin, they oxidize easily at the double bonds and undergo polymerization processes (resinification) which substantially modify the properties, the perfume and the solubility in the alcohol of the essential oil. The deterpenation consists in separating the monoterpenic hydrocarbons, not very soluble in water and irritating to the skin, from the sesquiterpene constituents and from the oxygenated compounds (phenols, alcohols, aldehydes, ketones, etc.). In this way we arrive at a terpeneless essential oil that sees its bactericidal power activated as a result of an "increased concentration of the fraction of oxygenated compounds. Terpeneless essential oils are more stable, more soluble in water and low alcohol" alcohol. , while they are devoid of irritating power for the respiratory tract, eyes and mucous membranes in general.
and subdivision of the essence, so as to determine the formation of peroxides in a percentage directly proportional to the time and intensity of the peroxidizing action.
In an ozonated environment, the double bonds of terpene compounds add up oxygen forming peroxides, a class of compounds with bactericidal action because they are able to release, in contact with germs, oxygen in the nascent state, which is able to oxidize even those substrates of the living protoplasm that the atmospheric molecular oxygen does not attack. The peroxidized essential oils have a surface tension much higher than that of natural essences and this increases their percutaneous penetration.
However, the essential oils whose antibacterial action has been increased with the peroxidic activation have a higher skin irritation coefficient, which makes it essential to emulsify them with suitable vehicles.
To learn more, read also:
- Essential Oils: What they are and where they are found
- Effects and Properties of Essential Oils
- How To Use Essential Oils
- Side Effects of Essential Oils
- Conservation of Essential Oils
- Aromatherapy
- Effects of Aromatherapy
The practices described here are not accepted by medical science, have not been subjected to experimental tests conducted with a scientific method or have not passed them. This information is for illustrative purposes only.
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