Draw a labelled diagram of apparatus used for continuous hot extraction process. Mention limitations of the process.

Draw a labelled diagram of apparatus used for continuous hot extraction process. Mention limitations of the process.
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1 Answer

Answer :

Diagram:

image

Limitations: process cannot be used in following conditions. 

Physical character of the drug: Drugs which may block the apparatus such as opium, gums, resins, etc cannot be used.

Solvent: Only pure solvents or constant boiling mixtures can be used for this process.

Chemical constituents: Unsuitable for thermolabile drugs, such as enzymes, alkaloids, etc


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