D.Pharmacy Pharmacognosy Notes


◆ Classification of Crude Drugs

Laxative:-

◆ALOES :-  Aloes



◆ ARJUNA :-

Synonym:

Arjuna bark, Arjun

Biological Source:

 Arjuna consists of dried stem bark of the plant known as Terminalia arjuna Rob, belonging to
Family:- Combretaceae

Geographical Source: 

in Indian (Chotta-Nagpur region, M.P.)

Cultivation and Collection : -

Naturally growing plant in the dense forests -wild growing plants - seeds germination in 21 days -fertile loam and rainfall in range of 75 to 190

Macroscopic Characters : 

- Colour - greyish-brown
- Odour - None
- Taste - Astringent
- Shape - Flats

Chemical constituents: -

Contains 15% of tannins -also contains triterpenoid saponin, arjunolic acid, arjunic acid, arjunogenin. sitosterol, ellagic acid, and arjunic acid, flavonoids, calcium, aluminium and magnesium salts

Chemical test: 

Ether extract shows pinkish fluorescence under UV light

Uses: 

as cardiotonic.  antidysenteric.  diuretic and tonic properties.  hypotensive action 

Adulterants: 

Terminalia tomentosa


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