Phytochemical Test of Alkaloid | Qualitative Estimation of Alkaloid | Alkaloid Test |अल्कालॉयड टेस्ट

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This video is also available in ENGLISH. Phytochemical Test for Alkaloid = Qualitative Estimation of Alkaloid (ENGLISH) By Solution Pharmacy • Phytochemical Test for...
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Alkaloid Test
Herbal drugs are one of the most used sources of the drug. this gives beneficial action without or fewer side effects. but when these herbal drugs are adulterated with substandard drug or superficially alike drug, its potency and quality changed. to check or evaluate the purity and quality of herbal drug we must go for a phytochemical screening test including- (1) Test for alkaloid (2) test for Flavonoid (3) test for Tennis (4) test for saponin (5) test for cardiac glycoside etc. in pharmacognosy and botany practicals, these phytochemical test becomes very important to find out the presence of active constituents in given crude drug sample.
An alkaloid, any of a class of naturally occurring organic nitrogen-containing bases. Alkaloids have diverse and important physiological effects on humans and other animals. Well-known alkaloids include morphine, strychnine, quinine, ephedrine, and nicotine. The alkaloids are a group of basic, secondary plant substance, which usually possess a N-containing hetero-cycle. Their basic character is due to this feature. The alkaloids are mostly colourless, crystalline and non-volatile solids. They are insoluble in water, but soluble in organic solvents viz., ethanol, ether, benzene, chloroform etc.
Alkaloids are found primarily in plants and are especially common in certain families of flowering plants.
The qualitative chemical tests used for detection of alkaloids are depend on the character of alkaloids to give precipitate as salts of organic acids or with compound of heavy metals like Hg, Au, Pt, etc.
1. Test by Dragendorff reagent (Potassium-bismuth-iodide solution): Alkaloids give reddish brown precipitate with this reagent.
2. Test by Mayer reagent (Potassium-mercuric-iodide solution): Alkaloids gives cream colour precipitate with this reagent.
2. Test by Wagner reagent (iodine-potassium-iodide solution): Alkaloids give Brown colour precipitate with this reagent.
3. Test by Hager reagent (Saturated solution of picric acid): Alkaloids give yellow colour precipitate with this reagent.
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[@rubikushwah8931]

Thank you so much ma'am. We can't performs practical in the college but your video is very helpful for us for learning every thing.

[@ShabirAhmed-ov3ql]

Thank you so much mam...,,🙏🙏🙏

[@tushardukare8033]

Great and thank u so much 😊

[@THESHIV2.O]

Very nice ma'am 👏 👏👏

[@drxankitshakya221]

Thank you

[@jayamishra5392]

Mam I have to do alkaloid test for plant seed powder . I followed the same procedure as you . I mixed ethanol to powder in sufficient quantity and kept for extraction for 30 min then filtered and kept on water bath for heating. I didn't got any dried product .some slurry sort of substance obtained of less than 0.5ml . I also took a small quantity of powder in a test tube and tried to dissolve in water and methanol but the powder and solvent both remain separate. I can't figure out which solvent should I use . Can u suggest some?

[@solutionpharmacy]

Mix that slurry in dil HCl mix properly with glass rod than filter it after this use the filtrate for test

[@jayamishra5392]

@@solutionpharmacy I did that but after adding nesslers reagent there was no change in colour and no ppt . So I discarded.

[@tabishislam6602]

Useful practical guide

[@solutionpharmacy]

Thank you

[@muskanchadha2536]

Can you please share reference for the same too

[@pharmacysolutions786]

🙏

[@sportsgyaan743]

How to calculate alkaloid value

[@yahiaayman238]

Good channel Is there another channel for english?

[@solutionpharmacy]

This video is also available in english explanation

[@yahiaayman238]

@@solutionpharmacy thank you

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[@solutionpharmacy]

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