Already in the folk recipes of our ancestors it was possible to find plant extracts, which were used as one of the oldest forms of medicine. Today, the extracts are used not only in the pharmaceutical industry, but also in the food and cosmetics industries.
An extract is an extract from plants with a liquid, solid or viscous consistency, usually obtained from dried or fresh plants (traditional plant). In some preparations, the plant may be subjected to a pre-treatment such as milling. Extracts are prepared by extraction using water, ethanol or another suitable solvent. After extraction, undesired substances are removed, if necessary, by filtration or other separation methods.
The process of extracting active substances from plants
Extraction of active substances from plants is a physico-chemical separation process, the aim of which is to transfer these substances present in plants (solid phase) to the extract using a suitable solvent (water, ethanol, propylene glycol, glycerin). The result is the formation of 2 phases: a liquid extract and a solid residue after extraction (matrix).