Today, let's talk about the different extraction methods to produce the color and composition of the essential oil
At present, the commonly used extraction method on the market is distillation, as far as ginger is concerned, there are distillation, ultrasonic, supercritical, subcritical.
1. Distillation extraction, similar principles to other distillation machines
Water is produced by electric heating (or other means of heating) water vapor (or direct material boiled with water), internal pressure is generated through the external link of the oil outlet, through the middle of the inlet and outlet water condensation, and then gas liquid words, out of essential oils and pure dew
By distilling out the ginger essential oil, a certain shake screenshot, the color is light yellow, transparent. The odor is light and there is no spiciness after application.
2. Supercritical extract of ginger essential oil. Supercritical low temperature and high pressure, under high pressure carbon dioxide will be fully combined with ginger in the form of fluid to extract the large and small molecules in ginger. Because of its low temperature characteristics, it does not destroy the active ingredients.
Why is ginger essential oil so hot and spicy through supercritical extraction?
The volatile oil extracted by water vapor in the ginger rhizome hardly contains high boiling point components, and the essential oil is a transparent, light yellow oily liquid. Some phenolic derivatives, such as curly, because of their unique molecular structure, are difficult to distill out with water vapor, so they can only extract part of the flavor substances in ginger.
So distilled ginger essential oil is milder
Ginger essential oil extracted from supercritical CO2, containing large and small molecules as well as aromatic components, gingerol is a substance with a high content of ingredients in ginger, which can fully achieve the consistency of ginger's spicy flavor.
So if it is a body massage then the supercritical extract of ginger essential oil is very good! In addition, the color of supercritical extracted ginger is dark red, which is more thorough, pay attention to the distinction!