In general, the cost of essential oil should not be too high, if so, it is impossible to accept it on the market. In general, hexane leaching and ethanol extraction are commonly used. In this case, the boiling point is high, and the temperature of desolution is very high, which will destroy the components of essential oil. So generally in essential oil will not be used, it is necessary to use a low cost, good for essential oil, will not destroy the essential oil components.
Subcritical low temperature extraction technology of essential oil extraction equipment is a good extraction technology. The advantage of this technology is that it can be carried out at room temperature and low pressure. Generally, it is extracted in a closed and low pressure container, and solvents such as propane or butane are used for extraction and separation. Then the essential oil in the material can be transferred to the extraction solvent, and then it can be dissolved at room temperature to obtain wormwood essential oil. Subcritical low-temperature extraction technology has outstanding advantages in wormwood essential oil. When the temperature is low, the components in the essential oil can be well protected, and the thermal sensitivity of wormwood essential oil can be easily hydrolyzed, volatile and oxidized, and the extraction effect is relatively high. Can scale production, low cost, environmental protection, get wormwood classics game taste better.
In fact, subcritical low-temperature extraction technology of essential oil extraction equipment has a good application in many industries. Many plant components such as prickly ash oil, ginger oil, tobacco and angelica sinensis can be efficiently extracted, including essential oil extraction and pigment extraction. Vegetable oil extraction is a very mature technology.