Rauwolfia serpentina Pharmacognosy Notes - B.Pharm Sem 5
Download PDF Notes covering:
- Cultivation techniques & harvesting methods
- Macroscopic identification features
- Key alkaloids and their medicinal uses
- Geographical distribution patterns
Keywords: Rauwolfia PDF notes, Sarpagandha study material, Pharmacognosy sem 5 PPT, Apocynaceae family plants, Antihypertensive drugs notes
Comprehensive Study of Rauwolfia serpentina (Sarpagandha)
1. Botanical Profile
- Scientific Name: Rauwolfia serpentina Benth.
- Family: Apocynaceae
- Native Regions: Tropical Asia, Africa, America
- Indian Cultivation: UP, Bihar, Tamil Nadu, Gujarat
2. Cultivation Protocol
Optimal growth conditions:
- Soil: Clay loam with humus (pH 4)
- Climate: Hot humid (10-38°C)
- Rainfall: 250-500 cm annually
- Propagation: Seeds (May-July sowing)
- Harvesting: After 3-4 years growth
3. Macroscopic Characteristics
| Feature | Description |
|---|---|
| Color | Greyish yellow (root bark) |
| Shape | Sub-cylindrical, tortuous roots |
| Size | 10-80cm length, 1-3cm diameter |
| Fracture | Short and irregular |
4. Chemical Constituents
- Indole Alkaloids: Reserpine, Ajmaline
- Other Compounds: Serpentine, Yohimbine
- Total Alkaloids: 0.7-3% in dried roots
5. Pharmaceutical Applications
- Treatment of hypertension
- Mental disorder management
- Antidote for snake bites
- Sedative properties
6. Quality Control Tests
- Thin layer chromatography for alkaloid profile
- UV spectroscopy analysis
- Bitterness value determination
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