Procedure Take the available plant material and grind it in the mortar.
Treat the material with cellulase to break down the cell wall of the plant cells.
Next, treat it with protease to hydrolyze the peptide bonds of proteins in the plant material. In other words, the enzyme removes the histone proteins which are intertwined with the DNA.
Dissolve RNA with ribonuclease
Use lipase to dissolve lipids
Add chilled ethanol to enable the precipitation of the DNA. It essentially increases DNA concentration.
Use spooling to extract the precipitated DNA
Spooling involves winding the fine threads of DNA on to a reel.