C-C glycosides, aloins are very resistant to hydrolysis and are______ hydrolysed

It can ,however, be decomposed by oxidative hydrolysis with reagents such as ferric chloride.

The purgative action of anthracene bearing drugs is owed to their anthracene glycosidal content rather than their content of free anthracene aglycones

Cascara sagrada: Is the dried bark of Rhamnus purshiana F: Rhamnaceae.

Cascarosides____ (glycosides of barbaloin)

Cascarosides___(glycosides of chrysaloin

Cascara is used as a cathartic

Usual dose of Cascara sagrada fluid extract is 1ml; of aromatic fluid extract is _______; of Cascara sagrada extract is 300mg.

Frangula (Buckthorn):
Is the dried bark of Rhamnus frangula F: Rhamnaceae.
The commercial supply is from _______.

Constituents of frangula :

Frangula
: as a mild cathartic.

Aloe: Aloe is the ________ of the leaves of Aloe perri or Aloe barbadensis F: liliaceae.

There are about 50 species of Aloe known, most of which are indigenous to _______.

An important anthracene-glycoside in Aloe is barbaloin.

_______of barbaloin with an additional sugar have been isolated
from Aloe & been designated as aloinoside

Free (_______) aloe- emodin is also present as free & combined.

Uses Aloin : As a cathartic by acting on the large intestine