Page 292 - Pharmacognosy 2 PG303

Chemical Pharmacognosy-2 (PG303)
tests
➢ On micro-
sublimation,

powdered

Hydrastis yields a

yellow crystalline

sublimate of
hydrastine.
➢ Shake powdered

Hydrastis with
CHCl3 filter,

evaporate the
filtrate to dryness,
▪ Residue + H2SO4 +

small crystal of

ammonium
molybdate ,a green

color changed to
blue.
▪ Residue + H2SO4 +

few drops of
bromine ,a blood-

red color is
produced.

Uses ▪ anti -inflammatory ▪ Expectorant :

for the uterine used in bronchitis

mucous membrane. ▪ Emetine has

▪ isoquinoline alkaloid amoebicidal activity.

constituents ▪ Larger amount of

(Antibiotic , the drug is a strong

Immunostimulant , emetic.

Anticonvulsant ,