,About the Author
C. Velmani M.Pharm.,
Assistant Professor, Department of Pharmacognosy
C. Velmani is an esteemed academician and researcher in the field of
Pharmacognosy, serving as an Assistant Professor in the Department of
Pharmacognosy. With a postgraduate degree in Pharmacy (M.Pharm) specializing
in Pharmacognosy, he has dedicated his career to both teaching and research in
natural product chemistry, phytochemistry, and herbal drug development. He has
actively contributed to the academic development of B.Pharm students by
preparing structured course materials that simplify complex concepts and bridge
the gap between theoretical knowledge and practical applications. His teaching
methodology emphasizes clarity, studentfriendly learning approaches, and the
integration of traditional knowledge with modern scientific understanding. His
research interests focus on the pharmacological activities of medicinal plants,
standardization of herbal drugs, isolation of bioactive compounds, and exploring
the therapeutic potential of phytochemicals.
He has guided undergraduate students in academic projects, encouraging them
to explore innovative research in the field of herbal medicine. C. Velmani
strongly believes in nurturing the next generation of pharmacists by not only
providing academic knowledge but also instilling scientific curiosity, ethical
research practices, and practical problem-solving skills. His contributions
extend beyond the classroom through academic reference materials, seminars,
and collaborative research activities. This book, “Pharmacognosy and
Phytochemistry,” is prepared as an academic reference to aid students in easy
learning, exam preparation, and research guidance, reflecting his vision of
making pharmaceutical education both accessible and impactful.
, PHARMACOGNOSY AND PHYTOCHEMISTRY -I
(Theory)
Scope
This subject deals with the fundamentals of Pharmacognosy including scope, classification of crude drugs, their
identification, evaluation, and phytochemicals present in them along with their medicinal significance.
Objectives
After successful completion of this course, the student will be able to:
- Understand the techniques of cultivation and production of crude drugs.
- Describe crude drugs, their uses, and chemical nature.
- Apply evaluation techniques for herbal drugs.
- Carry out microscopic and morphological evaluation of crude drugs.
UNIT I – Introduction to Pharmacognosy
- Definition, history, scope, and development of Pharmacognosy
- Sources of drugs: Plants, Animals, Marine sources, Tissue culture
- Organized vs. Unorganized drugs (latex, juices, extracts, gums, mucilages, oleoresins, resins)
- Classification of drugs: Alphabetical, Morphological, Taxonomical, Chemical, Pharmacological,
Chemotaxonomical
- Quality control of drugs of natural origin: Adulteration, organoleptic, microscopic, physical, chemical & biological
evaluation
- Quantitative microscopy: Lycopodium spore method, leaf constants, camera lucida diagrams
UNIT II – Cultivation, Collection, Processing and Storage
- Cultivation and collection of crude drugs
- Factors influencing cultivation of medicinal plants
- Role of plant hormones in cultivation
- Polyploidy, mutation and hybridization in medicinal plants
- Conservation of medicinal plants
UNIT III – Plant Tissue Culture
- Historical development of plant tissue culture
- Types of cultures and nutritional requirements
- Growth and maintenance techniques
- Applications in Pharmacognosy
- Edible vaccines
, UNIT IV - Pharmacognosy in systems of medicine & secondary metabolites
- Role of Pharmacognosy in Allopathy and Traditional systems (Ayurveda, Unani, Siddha, Homeopathy, Chinese
medicine)
- Secondary Metabolites: Definition, classification, properties and identification tests
- Examples: Alkaloids, Glycosides, Flavonoids, Tannins, Volatile oils, Resins
UNIT V – Primary Metabolites & Marine Drugs
- Plant Products: Fibres (Cotton, Jute, Hemp), Hallucinogens, Teratogens, Allergens
- Primary Metabolites:
- - Carbohydrates: Acacia, Agar, Tragacanth, Honey
- - Proteins & Enzymes: Gelatin, Casein, Papain, Bromelain, Serratiopeptidase, Urokinase, Streptokinase, Pepsin
- - Lipids (Waxes, Fats, Fixed oils): Castor oil, Chaulmoogra oil, Wool fat, Beeswax
- Marine Drugs: Novel medicinal agents from marine sources
C. Velmani M.Pharm.,
Assistant Professor, Department of Pharmacognosy
C. Velmani is an esteemed academician and researcher in the field of
Pharmacognosy, serving as an Assistant Professor in the Department of
Pharmacognosy. With a postgraduate degree in Pharmacy (M.Pharm) specializing
in Pharmacognosy, he has dedicated his career to both teaching and research in
natural product chemistry, phytochemistry, and herbal drug development. He has
actively contributed to the academic development of B.Pharm students by
preparing structured course materials that simplify complex concepts and bridge
the gap between theoretical knowledge and practical applications. His teaching
methodology emphasizes clarity, studentfriendly learning approaches, and the
integration of traditional knowledge with modern scientific understanding. His
research interests focus on the pharmacological activities of medicinal plants,
standardization of herbal drugs, isolation of bioactive compounds, and exploring
the therapeutic potential of phytochemicals.
He has guided undergraduate students in academic projects, encouraging them
to explore innovative research in the field of herbal medicine. C. Velmani
strongly believes in nurturing the next generation of pharmacists by not only
providing academic knowledge but also instilling scientific curiosity, ethical
research practices, and practical problem-solving skills. His contributions
extend beyond the classroom through academic reference materials, seminars,
and collaborative research activities. This book, “Pharmacognosy and
Phytochemistry,” is prepared as an academic reference to aid students in easy
learning, exam preparation, and research guidance, reflecting his vision of
making pharmaceutical education both accessible and impactful.
, PHARMACOGNOSY AND PHYTOCHEMISTRY -I
(Theory)
Scope
This subject deals with the fundamentals of Pharmacognosy including scope, classification of crude drugs, their
identification, evaluation, and phytochemicals present in them along with their medicinal significance.
Objectives
After successful completion of this course, the student will be able to:
- Understand the techniques of cultivation and production of crude drugs.
- Describe crude drugs, their uses, and chemical nature.
- Apply evaluation techniques for herbal drugs.
- Carry out microscopic and morphological evaluation of crude drugs.
UNIT I – Introduction to Pharmacognosy
- Definition, history, scope, and development of Pharmacognosy
- Sources of drugs: Plants, Animals, Marine sources, Tissue culture
- Organized vs. Unorganized drugs (latex, juices, extracts, gums, mucilages, oleoresins, resins)
- Classification of drugs: Alphabetical, Morphological, Taxonomical, Chemical, Pharmacological,
Chemotaxonomical
- Quality control of drugs of natural origin: Adulteration, organoleptic, microscopic, physical, chemical & biological
evaluation
- Quantitative microscopy: Lycopodium spore method, leaf constants, camera lucida diagrams
UNIT II – Cultivation, Collection, Processing and Storage
- Cultivation and collection of crude drugs
- Factors influencing cultivation of medicinal plants
- Role of plant hormones in cultivation
- Polyploidy, mutation and hybridization in medicinal plants
- Conservation of medicinal plants
UNIT III – Plant Tissue Culture
- Historical development of plant tissue culture
- Types of cultures and nutritional requirements
- Growth and maintenance techniques
- Applications in Pharmacognosy
- Edible vaccines
, UNIT IV - Pharmacognosy in systems of medicine & secondary metabolites
- Role of Pharmacognosy in Allopathy and Traditional systems (Ayurveda, Unani, Siddha, Homeopathy, Chinese
medicine)
- Secondary Metabolites: Definition, classification, properties and identification tests
- Examples: Alkaloids, Glycosides, Flavonoids, Tannins, Volatile oils, Resins
UNIT V – Primary Metabolites & Marine Drugs
- Plant Products: Fibres (Cotton, Jute, Hemp), Hallucinogens, Teratogens, Allergens
- Primary Metabolites:
- - Carbohydrates: Acacia, Agar, Tragacanth, Honey
- - Proteins & Enzymes: Gelatin, Casein, Papain, Bromelain, Serratiopeptidase, Urokinase, Streptokinase, Pepsin
- - Lipids (Waxes, Fats, Fixed oils): Castor oil, Chaulmoogra oil, Wool fat, Beeswax
- Marine Drugs: Novel medicinal agents from marine sources
