Contemporary pharmacognosy goes beyond wild harvesting by utilizing laboratory innovations to produce active plant compounds. Plant Tissue Culture (PTC)
Shade drying : Used for aromatic herbs to prevent volatile oil evaporation.
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This morphological classification is based on the source's physical form.
Moisture content, ash values (total, acid-insoluble), extractive values. This link or copies made by others cannot be deleted
Crude drugs are unprocessed natural materials used for medicine. They can be classified in several ways:
┌──────────────────────────────┐ │ Crude Drug Classification │ └──────────────┬───────────────┘ │ ┌───────────────────────┼───────────────────────┐ ▼ ▼ ▼ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ Morphological │ │ Chemical │ │ Pharmacological │ │ Organized vs │ │ Based on Active │ │ Based on Therapeutic│ │ Unorganized │ │ Phytoconstituent│ │ Action │ └─────────────────┘ └─────────────────┘ └─────────────────┘ 1. Alphabetical Classification Arranged by Latin or English names. Used in official pharmacopoeias (e.g., USP, BP). Quick for looking up entries but lacks scientific context. 2. Taxonomic Classification Try again later
Moisture content, ash values, extractive values, and viscosity.
(Suggested PPT Slide: Timeline of Herbal Medicine)
The keyword is evolving. Forward-thinking educators are now adding QR codes to slides that link to 3D chemical models, virtual microscopy of plant tissue, or YouTube extraction demonstrations.