Extraction involves the separation of the medicinally ............... of plants or animal tissues from
the inactive or inert component

in Extraction method using solvent(s) and by using one of the standard extraction procedures

Mechanism of extraction

Methods of extraction can be divided into

in Maceration Water is used because if the alkaloids present in a ...... form, they will dissolve in water.

Non-polar solvent like chloroform are used for the extraction of volatile oil and terpenes.

Advantages of Maceration:

Disadvantages of Maceration

In Percolation method The plant
material is much better to be soaked by the solvent about..... hr. before starting the procedure.

in Percolation method The solvent called .......... and the
extract we get it called p........ and the plant material left is called .........material

Advantages of Percolation

Disadvantages of Percolation

Cool method

Continuous hot extraction methods

This method is usually used for hard plant material like barks, stems and roots which contain a lot of
fibers

in Decoction method the solvent used depend on the active constituent and source of heat e.g. chloroform and ether can be
used

method is used in cases were moderately elevated temperature is required.

Advantages of soxhlation
.

In this method we use a special apparatus which is called Clevenger

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