BP205T · Semester 2 · B.Pharm

Unit IV — Extraction Methods for Medicinal Plants

Pharmacognosy and Phytochemistry

This study page introduces Extraction Methods for Medicinal Plants in Pharmacognosy and Phytochemistry (BP205T), B.Pharm Semester 2. Read the selected definitions and short notes below, then download the full unit PDF.

Topics in this unit

  • What Is Extraction? Basic Terms and Why We Extract
  • Conventional Methods I — Infusion, Decoction and Digestion
  • Conventional Methods II — Maceration
  • Conventional Methods III — Percolation
  • Conventional Methods IV — Reflux, Distillation, Soxhlet Extraction and Successive Solvent Extraction
  • Modern Methods of Extraction
  • Selection of Extraction Method — Putting It All Together

Definitions and short notes

Selected extracts from this unit’s notes. Download the full PDF below for the remaining topics and examples.

  • Short note

    Extraction = the process of separating the desired chemical constituents (the "active" or useful parts) of a medicinal plant from the unwanted solid plant material, using a suitable liquid called a solvent.

    Unit PDF · page 2

  • Think of making tea

    hot water pulls the flavour and colour out of the tea leaves. The leaves stay behind; the tasty liquid is collected. That is extraction.

    Unit PDF · page 2

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For education and exam preparation only, not medical advice or current regulatory guidance.

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