Fourth part of an informative series on herbal drug extraction techniques published on Biotech Articles.
Third part of an informative series on herbal drug extraction techniques published on Biotech Articles.
The commonly employed technique for removal of active substance from crude drug is called extraction. The choice of the plant material for extraction depends on its nature and the components required to be isolated.
Extraction can be defined as the removal of soluble materials from an insoluble residue, either liquid or solid, by treatment with a liquid solvent. The choice of extraction procedure depends on the nature of the plant material and the components to be isolated.