This document discusses tannins and provides information on their physical and chemical properties as well as medicinal uses. It describes different classes of tannins including hydrolysable tannins, condensed tannins, and complex tannins. Examples of plants containing tannins like tea, oak, and chestnut are provided. The document also discusses resins and resin combinations found in plants like ginger, pine wood, and cannabis. It provides details on specific plants like cannabis, chili peppers, ginger, and balsam tolu including their synonyms, parts used, chemical constituents, and traditional medicinal uses.

1. M R SUMON SARKAR
Department Of Pharmacy

4. Tannins
Tannins

5. Physical Properties:
ChemicalProperties:

6. Medicinal and biological properties:
(i)T

7. Chemical Classification of tannins:
Based on identity of phenolic nuclei involved and on the way they are joined.
Hydrolysable
tannins
Condensed
tannins
Complex tannins

8. Hydrolysable tannins

9.  Condensation product of Flavan-3,4-diol.
 They resist hydrolysis.
 Produce catechol on dry distillation.
 Present in Cinchona, Cinnamon, Green tea.
catechin

10. Examples:
 Tea
 Quercus
 Castanea
Complex tannins

13. Tannin contain in crude drug

14. Catechu
Scientific Name:
Uncaria gambir
Family:
Rubiaceae
Constituents:
Catechin
Catechutannic acid
Catechu red
Gambir flourescin
Uses:
Astringent
Dying
Tanning industry

15. Nutt gallScientific Name

17. Resins and Resin combination
Definition :
– Amorphous products.
– Complex chemical nature.
– Formed in schizogenous or in schizolysigenous ducts or cavities.
– Secondary metabolites produced by higher plants.

18.  Physically :- Resins are usually hard, transparent or translucent . When
heated, they soften and finally melt.
:- They are complex mixtures of resin acids , resin alcohols,
resin phenols (resinotannols).
:- Insoluble in water & petroleum spirit . Soluble in
alcohol,chloroform & ether.

19. • Ginger
• Pine Wood
• Cannabis

22.  Synonym: Indian hemp, Indian
cannabis, Hashish, Bhang, Ganja, Charas.
 Useful part: Dried flowering tops.
 Scientific name: .
 Chemical constituents:
.
 Uses:

23.  Synonym: chillies, cayenne pepper, red
pepper, capsicum fruits, fructus capsici,
mirch(hindi).
 Useful part : Dried ripen fruits.
 Scientific name :Capsicum annum Linn.
 Uses:
 externally : stimulant, counter irritant, rubefacient, sore throat, scarlatina, hoarseness &
yellow fever.
 internally : carminative, stomachic, dyspepsia, flatulence. in the form of ointment, plaster
& medicated wool.
 Chemical constituents:

24. Synonym:
Useful part:
 Scientific name: Zingiber officinale.
Chemical constituents:
Uses:

25.  Synonym: Thomas balsam, Opo balsam,
Resin tolu.
 Useful part:
 Scientific name: Myroxylon balsamum.
 Chemical constituents:
 Uses: