Pharmacognosy Lecture Notes — Ppt [exclusive]
Avoid generic clip art. Use clear photographs of medicinal plants, microscopic cross-sections of barks/leaves, and TLC (Thin-Layer Chromatography) plates.
From ancient traditional medicine (Ayurveda, Chinese medicine) to modern phytochemistry.
: Wrote De Materia Medica , describing over 600 medicinal plants.
Quality control prevents adulteration. PPT slides must detail: pharmacognosy lecture notes ppt
This section sets the foundation by defining the scope of the study. Definition & History
Isolated morphine from opium, marking the birth of modern phytochemistry. 2. Classification of Crude Drugs
Polyphenolic, astringent compounds that precipitate proteins. Used for healing wounds and treating diarrhea (e.g., Catechu). Avoid generic clip art
The core of the lecture, focusing on the chemical nature of drugs.
: Popular platforms for user-contributed academic presentations. Pharma-Specific Portals : Websites like PharmaApproaches often host curriculum-aligned notes. University Repositories
: Manual picking preserves delicate structures; mechanical harvesting is used for large-scale crops. Post-Harvest Preservation : Wrote De Materia Medica , describing over
| Metabolite Type | Examples | Drugs | PPT Focus | |----------------|----------|-------|------------| | | Cardiac glycosides | Digitalis , Strophanthus | Mechanism of action on heart | | Alkaloids | Tropane, indole, isoquinoline | Belladonna , Cinchona , Opium | Chemical tests (Dragendorff’s, Mayer’s) | | Terpenoids | Monoterpenes, sesquiterpenes | Neem , Artemisia | Antimalarial and anticancer properties | | Resins & Tannins | – | Guggul , Ashoka bark | Astringent and wound-healing uses |
The scope of pharmacognosy extends far beyond historical herbalism. Today, it encompasses:
: Include a "Plant of the Week" slide to deep-dive into one specific drug's journey from soil to pharmacy shelf. specific drug class
The preferred system for modern phytotherapy and pharmacology.
The study of crude drugs obtained from natural sources such as plants, animals, marine organisms, and microorganisms.
