Extraction of alkaloids using aqueous solution of carbonic acid

A method whereby an aqueous solution of carbonic acid is used to extract alkaloids from biomatter comprising:

• first adding dried ground biomatter to an extraction tank;
• then adding purified water to said extraction tank;
• then mixing and agitating said combined dried ground biomatter and said purified water to form a slurry;
• then cooling said extraction tank to a temperature just above the freezing point;
• then introducing carbon dioxide into said slurry causing the formation of carbonic acid (H2CO3) which will cause the PH of the aqueous mixture to lower to approximately a PH3.5;
• then continuing mixing for a prescribed period of extraction time depending on the nature of the biomatter and the alkaloids being extracted and injecting additional CO2 from time to time to maintain the low PH;
• and,
• then once the prescribed period of extraction time has been reached pumping the slurry to a water/solid separator.