Pharmacognosy Lecture Notes Ppt

Medicinal substances are primarily harvested from four natural origins:

: Examination of cellular features, trichomes, stomata, and starch grains.

: Collected in autumn when vegetative growth stops. Post-Harvest Preservation pharmacognosy lecture notes ppt

Sometimes, pre-made PPTs do not match your university’s specific question pattern. Here is a 5-step workflow to convert handwritten or PDF notes into a high-yield :

Timing of harvesting to maximize active ingredients. 5. Marine Pharmacognosy Here is a 5-step workflow to convert handwritten

Drugs are arranged alphabetically using Latin or English names. : Acacia, Benzoin, Cinchona, Digitalis. Advantage : Easy to use and locate a specific drug quicky.

Adulteration—the intentional or accidental substitution of genuine drug material with inferior, exhausted, or toxic substances—presents a major challenge in herbal medicine. Quality control testing ensures identity, purity, and potency. Organoleptic Evaluation Evaluation using the human senses: Length, width, and surface markings. : Acacia, Benzoin, Cinchona, Digitalis

: Goldbeater's skin test; FeCl3 test (blue-black or green coloration). Examples : Catechu, Tannic acid, Witch hazel. Module 7: Plant Tissue Culture and Biotechnology