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BACKGROUND
Synonym is Gum asafoetida, Devil’s dung. It is obtained from roots and rhizomes of Ferula foetida regel belongs to family Umbelliferae. Generally it is found in India (Kashmir) and Iran, Afganisthan, Mediterranean region to central Asia. The active constituents presentin it is, gum, resin, asaresinotannol, volatile oil. The chemical constituents are ferulin acid, umbellic acid, umbelliferone, asafoetidin.1
Aim: Aim of the experiment is to carry out different chemical test to analyze the crude drug of asafoetida.
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REQUIREMENTS
Apparatus: Mortar and pestle,
Test tube conical flask,
Beaker,
Filter paper,
Drug sample,
Weight balance.
Chemicals: HCl,
Ammonia,
50% HNO3,
H2SO4,
Water
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PROCEDURE
Chemical test
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When the drug is triturated with water, a yellowish orange emulsion is produced.
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0.5 gram of drug sample is boiled with 5ml of HCl for few minutes. Then sample is subjected for filtration. Ammonia is added to the collected filtrate, which will show blue colour fluorescence.
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Green colour is produced by adding 50% HNO3 to the fractured surface.
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When one drop of H2SO4 is added to the fractured surface of the drug sample it will show red colour. Further the red colour sample is converted in to violet colour on washing with water.2
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CONCLUSION
The above experiment shows the presence of chemical constituent in drug sample. It is used as intestinal flatulence, carminative, flavouring agent, expectorant, and antispasmodic.
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REFERENCES
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Kokate CK, Purohit AP, Gokhale SB. Druds containing alkaloid (caffeine). Text book of Pharmacognosy, 51 edition. Nirali Prakashan, Pune. 2015: 14-112.
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Shah B, Seth AK. isolation of phytopharmaceuticals. Text book of Pharmacognosy and Phytochemistry, 2nd edition. CBS Publishers & Distributors pvt ltd. 2014: 342.
