The worldwide production and consumption of essential oils and perfumes are increasing at rapid speed. The traditional technologies for extraction of essential oil processing are of great significance, but one cannot deny the fact that they do have significant drawbacks compared to the advanced extraction technique like CO2 Supercritical Extraction.
Why are traditional methods of extraction not safe?
The traditional methods of essential oil extraction are hydro-distillation or solvent extraction. The concern using the traditional methods is the losses of some volatile compounds, low extraction efficiency, degradation of unsaturated compounds through thermal or hydrolytic effects and toxic solvent residue in the extract.
Disadvantages of Water and Steam Distillation
Due to the low pressure of rising steam, oils of high-boiling range require a higher quantity of steam for vaporization -hence longer hours of distillation.
The plant material becomes wet, which slows down distillation as the steam has to vaporize the water to allow it to condense further up the still.
Oxygenated components such as phenols tend to dissolve in the still water, so their complete removal by distillation is not possible.
As water distillation tends to be a small operation (operated by one or two persons), it takes a long time to accumulate much oil, so good quality oil is often mixed with lousy quality oil.
The distillation process is treated as art by local distillers, who rarely try to optimize both oil yield and quality.
Water distillation is a slower process than either water and steam distillation or direct steam distillation.
What is the alternative solution to overcome solvent residue and toxic solvents?
The conventional extraction process has limitations of solvent toxicity, presence of residual solvents in the final extract and even loss of heat-sensitive oils. The rapidly emerging Supercritical fluid extraction technology is attracting more global markets and more substantial profits. Supercritical CO2 is becoming the preferred extraction choice for the industry.
The reason behind the Supercritical CO2 Extraction being the preferred choice for extraction of essential oils is that CO2 is safe, readily available, and no solvent residue.
Advantages of Advance CO2 Extraction over traditional methods
The higher extraction efficiency, the benefit of selective extraction, operates without altering or damaging products natural properties, no effluent generation and no pollution-related hassles & costs, lower operating costs, and global markets ensuring higher profits.
Cybernetik’s CO2 Extraction Systems
Cybernetik’s SCFE system provides higher extraction efficiency, top product purity, consistent product quality and prolonged product shelf life.
It is easy to clean and maintain and significantly reduces operating costs. The system uses the USFDA approved the process for extraction of ingredients from organic raw materials in the agro-processing industry. 100 % cGMP Compliance, Food & Pharma grade Equipment.
The system consists of high pressure and heating system, where liquid CO2 is transformed into supercritical CO2. The supercritical CO2 is mixed with the raw material in the extraction vessel.
The mixture is further transported into the gas-liquid separation chamber, where supercritical CO2 transforms into gas and is easily separated from the extract. This gas CO2 can be conveniently reused for further process.
Using Cybernetik SCFE systems can offer several other benefits in your industry. Know more about SCFE system and other agro-processing solutions from Cybernetik.
For further information, contact our representatives at [email protected]
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