JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

To know the medicinal and pharmaceutical importance of drugs

obtained from the natural sources and to acquire the knowledge on crude drugs by studying them under a suitable pharmacognostic scheme.

Course Outcome

At the end of the semester the student shall be aware of different sources

of crude drugs, cultivation aspects of medicinal and aromatic plants, evaluation methods for crude drugs, the medicinal importance and the role of crude drugs as excipients in various pharmaceutical dosage forms.

UNIT - I

• (a) Definition, History and Scope of Pharmacognosy.
• (b) Classification of crude drugs: Alphabetical, Morphological, Taxonomical, Chemical constituent and Pharmacological classification of crude drugs.
• (c) Scheme for Pharmcognostic study of crude drugs.

UNIT - II

• a) Cultivation of Crude drugs: Merits and demerits of cultivation of crude drugs. Exogenous factors affecting cultivation. Endogenous factors affecting cultivation: Plant growth regulators.
• b) Collection and processing of crude drugs. Methods of collection, drying, garbling and storage of crud drugs.

UNIT - III

• a) Quality Control of Crude Drugs: Crude drug Adulteration , Types of adulterants.
• b) Evaluation of crude drugs: Organoleptic evaluation, Microscopical, Physical, chemical and Pharmacological evaluation of crude drugs.

UNIT - IV

• a) A general introduction to Carbohydrates and Enzymes
• b) Systematic Pharmacognostic study of Agar and Isapgol
• c) Biological source, collection, preparation, chemical constituents, chemical tests and uses of the following crude drugs – Guar gum, Gum acacia, Honey, Pectin, Starch, Tragacanth, Papain and Diastase.

UNIT - V

• a) General Introduction to Lipids
• b) Biological source, collection, preparation, chemical constituents, chemical tests and uses of the following crude drugs – Castor oil, Olive oil, Linseed oil, Cod liver oil, Shark liver oil, Cocoa butter, Bees wax, Wool fat.

TEXT BOOKS:

• 1. Kokate C.K, Purohit AP & Gokhale Pharmacognosy S.B (Nirali)
• 2. Trease and Evans Pharmacognosy, Latest Edition.
• 3. A Textbook of Pharmacognosy by Dr. G.S. Kumar and Dr. K.N. Jayaveera

REFERENCES:

• 1. Atal C.R & Kapur B.M, Cultivation & Utilization of Medicinal Plants.
• 2. Ayurvedic Pharmacopoeia of India, Pub by Govt. of India.