Essential oils are also recognized as ethereal oil or volatile oil. Some of the essential oils are made up from terpenes and oxygenated derived.
Different portions of the plants are utilized to acquire the essential oil such as leaves, flowers, stems, wood, seeds, bark and roots.
Several oils that are utilized medicinally are termed as essential oils which are made through distillation instead of extracted or pressed.
How Essential Oils are obtained
There are numbers of ways by which essential oils are obtained and they include:-
First of all, generally used essential oils like peppermint, lavender and eucalyptus are refined. Raw plant material contains leaves, seeds, wood and flowers are kept into an apparatus on the top of the water.
When the water heats up, the steam is passed through the plant material and makes the unpredictable compounds vaporized. Then these fumes get converted into a liquid and accumulated in the pot.
Some of the citrus peel oils are cold-pressed or extracted involuntarily. Citrus-fruit oils are economical as compared to some of the essential oils. Sweet orange oils or lemons that are the derivatives of the profitable citrus industry are also not very expensive.
Some of the flowers include slight volatile oil and their elements are very subtle and are simply denatured by the extreme heat utilized in steam distillation. Rather a solvent like supercritical carbon dioxide or hexane is utilized to take out the oils.
Essential Oils Used in Aromatherapy
Aromatherapy is a kind of herbal medicine which is also derived from the plant extracts and essential oils. These essential oils contain medicinal properties which have been utilized in various medicines since the past and are also extensively utilized in the present world. These oils also have an elevating effect on the mind.
Essential oils are generally lipophilic compounds. It has been proved that organic solvents like acetone and alcohols like ethanol and methanol are considered as the best diluents. Water is not termed as oil as the oil does not dissolve in water.
Risks of Using Essential Oils
As the essential oils are rigorous in nature; therefore, they should not be used straightly on the skin. If the essential oils are applied directly, then they can generate an allergic reaction or severe irritation. Essential oils should be combined with vegetable carrier oil and then it should be used. Some of the commonly used carrier oils are hazelnut, olive and grapeseed oil.
An essential oil is intense hydrophobic liquor which includes unstable scented compounds derived from the plants. It is formed by distillation. Other mining methods to attain fragrant plant compounds involve solvent origin or appearance.
It is used in number of products like cosmetics, perfumery, for giving flavor to drink and food, aromatherapy, incense and in household cleaning products. They are considered to be very useful ingredients to the flavorant and fragrance industries.