Definition History Scope and Development of Pharmacognosy | L-1, Unit-1 | pharmacognosy 4th semester

In this Video we Cover, 1. definition history scope and development of pharmacognosy introduction to pharmacognosy Pharmacognosy & Phytochemistry 1 :-    • pharmacognosy 4th semester || Pharmacognos...   pdf :- https://drive.google.com/file/d/1JQlV... MUST WATCH b pharmacy 4th semester || Introduction | Strategy | Syllabus | तैयारी कैसे करें :-    • b pharmacy 4th semester || Introduction | ...   website for more :- https://www.carewellpharma.in how to download carewell pharma notes free :-    • HOW TO DOWNLOAD B PHARMACY NOTES || FREE |...   join telegram group :- https://telegram.me/carewellpharma Like, Share And Subscribe Our Channel For More Videos :-    / carewellpharma   Playlists :- 1. Pharmacology 1 :-    • pharmacology 4th semester || pharmacology ...   2. Medicinal Chemistry 1 :-    • medicinal chemistry pharmacy 4th sem || Me...   3. Pharmaceutical organic chemistry 3rd :-    • Poc 3rd | pharmaceutical organic chemistry...   4. Physical Pharmaceutics 2 :-    • physical pharmaceutics 4th semester || phy...   5. Pharmacognosy & Phytochemistry 1 :-    • pharmacognosy 4th semester || Pharmacognos...   subscribe to our channel and press the bell icon to get the latest updates of our videos. Share this video. DEFINITION :- Pharmacognosy is systematic study of these crude drugs obtained from natural origin like plant, animal and minerals. Pharmacognosy can be defined as branch of science which involves detail study of drugs obtained from natural origin including name, habitat, collection, cultivation, macroscopy, microscopy, physical properties, chemical constituents, therapeutic actions, uses and adulterants. The word pharmacognosy is derived from two words, pharmakon means medicine (drug) and gignosco means to acquire knowledge of something. HISTORY AND DEVELOPMENT OF PHARMACOGNOSY The history of pharmacognosy is as old as human existence. SCOPE OF PHARMACOGNOSY • Pharmacognosy has broad scope in the field of pharmacy such as :• 1. ISOLATION OR ANALYSIS OF PHYTOCHEMICAL :• Eg ; Strong acting substances such as glycosides from digitalis leaves,• Alkaloids from the plants of Belladonna, Hyocyamus, Rauwlofia• Morphine and other alkaloids from the plant opium were isolated and clinical uses studied 2. STRUCTURE ACTIVITY RELATIONSHIP :Eg : Tubocurarine and Toxiferine from curare plant have muscle relaxant properties because of quaternary ammonium groups. The hypotensive and tranquillizing actions of reserpine are due to the trimethoxy benzoic acid 3. DRUGS OBTAIN:ED BY PARTIAL SYNTHESIS OF NATURAL PRODUCTS:Eg : Preparation of Steroid hormones from diosgenin by acetolysis and oxidation and further preparation of cortisone by microbial reactions . 4. NATURAL PRODUCTS AS MODELS FOR SYNTHESIS OF NEW DRUGS : Eg: Morphine is the model of a large group of potent drugs . Cocaine for local anaesthetics Atropine for certain spasmolytics 5. DRUGS OF DIRECT THERAPEUTIC USES :• Among the natural constituents which even now cannot be replaced are important group of antibiotics, steroids, ergot alkaloids, vincristine etc• 6. BIOSYNTHETIC PATHWAYS INVESTIGATION :• Biosynthetic pathways are of primary and secondary metabolites.• Some of the important pathways are Clavin ‘s cycle of photosynthesis,• Shikimic acid pathway of aromatic compounds 14. • Acetate hypothesis for antharacene glycosides• Isoprenoid hypothesis for terpens• 7.CULTIVATION AND COLLECTION OF MEDICINAL PLANTS :• clove, cinchona , cinnamon, senna, opium, etc• Queries :- pharmacognosy 4th semester unit 1, introduction to pharmacognosy, introduction to pharmacognosy in hindi, definition history scope and development of pharmacognosy, pharmacognosy 4th semester, introduction to secondary metabolites in pharmacognosy, pharmacognosy history and scope, pharmacognosy definition in hindi, pharmacognosy definition history scope and development, pharmacognosy d pharm 1st year, pharmacognosy d pharma 1st year, pharmacognosy 4th semester b pharmacy, definition of pharmacognosy in hindi, definition and scope of pharmacognosy, definition history and scope of pharmacognosy, definition history and scope of pharmacognosy in hindi, pharmacognosy and phytochemistry 1, #carewellpharma #introduction #bpharm4thsem #pharmacognosy4thsemester B Pharma Pharmacy Notes download PDF, Best Handwritten notes of B Pharma Download Semester wise complete notes of B Pharma Pharmacy, Carewell Pharma Notes pdf Carewell Pharma pharma lecture b pharma 4th semester b pharma notes b pharmacy notes pharmacy video lecture pharma lectures in hindi Handwritten in Hindi B Pharma Pharmacy Notes download PDF Best Handwritten notes of B Pharma Download Semester wise complete notes of B Pharma Pharmacy Carewell Pharma Notes pdf