The Extraction Process
The extract consists of essential oils (EO), active ingredients, fatty oils, coloring matter, and in general all oil soluble substances
* The residue consists all other substances that are present in the feed
* The oil soluble substances are a range of chemicals with different molecular weights. They exhibit a solubility pattern inversely proportional to their molecular weights at any given temperature and pressure. The presence of different organic substituted groups also affects the solubility.
* Lower molecular weight components are extracted faster and have higher solubility in CO2, while higher molecular weight components have a lower solubility and consequently lower extraction rates.
* Once the extract is obtained, it is clarified, and water is separated out and the material is filled in containers. This extract is called the total extract.
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