Detail about Extraction, mechanism of extraction part 1.pptx

Extraction, types, mechanism, types, solvents, infusion, decoction

1. Sanjivani College of Pharmaceutical Education and Research, Kopargaon Pharmacognosy & phytochemistry-II Dr. Sutar N. G Associate Professor

2. Extraction Definition- A process, in which soluble active chemical constituents are separated from insoluble residue by using suitable solvent with or without heating

3. Extraction Menstrum - Solvent Micelle -Extract Marc- Residue

4. Mechanism of Extraction powder extraction

5. Factor affecting on rate of extraction 1.Particle size 3. Mixture ratio- Solute and solvent 4. Surface area 2. Temperature 5. Nature of material- Hard, soft 6. Type of solvent 7. Atmospheric pressure 8. pH value 9. Lipophilicity 10. Diffusion from insoluble material

6. Collection of drug authentication of drug Drying Shade drying for heat and light sensitive Sun drying for heat and light resistant Size reduction Solvent selection for extraction Process of extraction Polar- Water, Alcohol, Methanol Non polar- Chloroform, benzene, Toluene Solvent Types of extraction Traditional method of extraction Modern method of extraction Infusion Decoction Maceration Percolation Soxhlet extraction Counter current extraction Microwave assisted Ultrasound extraction S uper-critical F luid E xtraction Froth flotation technic

7. Infusion- Cold Cold infusion Filter Cold infusion Cumin powder Cumin powder and water residue Stir & Keep for few min. Infusion- Hot Hot infusion Filter Hot infusion Liquorice powder Liquorice powder and hot water Keep for few min. residue residue residue

8. Decoction Filter Hot extract Tea powder Tea powder and water residue Keep for boiling few min. residue Decoction

9. Thank you