Page 78 - Pharmacognosy 2 PG303

Pharmacognosy-2 (PG303) Level 2 Clinical Pharmacy-Pharm D

Adulteration
Colocynth may be adulterated by addition of excessive amounts of rind or
seeds.
1.The rind: It can be detected microscopically by the presence of numerous
sclerenchyma and epidermal cells with stomata and by determination of the ash
(not more than 15%) and acid-insoluble ash (not more than 8%).
2.The seed: It can be easily detected by determination of the petroleum
benzine extractive which should not be more than 3%.

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