The six key factors affecting the extraction of CO2 are: pressure, temperature, CO2 flow rate, time, co-solvent and particle size of raw materials.
Extraction pressure
The extraction pressure determines the composition of the extract.
High pressure means that the extraction time is shortened, and more extracts will be obtained. However, we need to be cautious to increase the extraction pressure, because more ineffective extracts will be obtained under high pressure. In our thirty years of extraction experiment, we know that with proper extraction pressure process, pure extracts will be obtained at one time.
Extraction temperature
Take the extraction of terpenoids limonene and carvone as an example: when the extraction pressure is 8MPa, the temperature rises from 35°C to 60°C, and the solubility of the two compounds decreases due to the decrease in the density of the CO2 fluid. When the temperature exceeds 60°C, as the temperature increases, the corresponding solubility will increase.
Therefore, the extraction temperature setting often requires more extensive extraction experience. BIT engineers are good at this field, please contact us, we will give you better extraction suggestions.
Pressure reduction method, variable temperature method and constant temperature and constant pressure adsorption method.
The answer has been provided, I guess you will understand it after reading it.
What are the advantages of supercritical CO2 extraction？What are the featuress of supercritical CO2 extraction?How does supercritical fluid extraction work?
What is the entrainer of supercritical CO2 extraction? What are the the use method and selection criteria of entrainer (cosolvent)? What should be considered when choosing an entrainer?
What is the effect of multi-stage extraction of supercritical CO2 extraction ?
Why does supercritical extraction require multi-stage separation?
7 kinds of fine separation and extraction technologies combined with supercritical extraction technology have expanded the application range of CO2 extraction.
Cinnamon oil Cinnamon oil obtained by supercritical co2 extraction of the bark, branches and leaves of Cinnamomum cassia Presl of the Lauraceae plant. It has the effects of dispelling rheumatism, warming the spleen and stomach. It is commonly used for rheumatism and skin itching, yang deprivation of the spleen and stomach, cold limbs, weak pulse, cold accumulation of the stomach… Read More »Cinnamon essential oil
Celery Seed Oil The botanical name of Celery oil by supercritical co2 extraction is Apium graveolens L. . The whole plant is used for the extraction of oil and this oil has a middle perfume note. It s aroma is bright, warm, herbal and that of fresh cut celery. Celery oil by supercritical co2 extraction blends well with Angelica Root,… Read More »Celery Seed Oil
About coleus Coleus forkskohlii belongs to the Lamiaceae – lavender family. Coleus forskohlii is a member of the mint and lavender family (lamiaceae) that has seen centuries of use in Ayurvedic medicine. This species is a perennial herb with fleshy, fibrous roots that grows wild in the warm sub-tropical temperate areas of India, Myanmar and Thailand. The essential oil is… Read More »Coleus Oil
Clove essential oil is a powerful and popular essential oil derived from the dried flower buds of the clove tree. It is widely used in the food, cosmetic, and pharmaceutical industries, as well as in aromatherapy and natural medicine. In this article, we will discuss the various extraction methods of clove essential oil, with a focus on CO2 extraction. 3… Read More »Clove Essential Oil and Top 3 Extraction Methods
Nutmeg Essential oil is obtained from the evergreen tree that grows up to 20 meters. The exterior husk of the fruit is dehydrated and used for extracting Mace essential oil, the seeds for the Nutmeg essential oil.
